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wealth; and in the development of its educational system, | 870 ft.; the mean level of the surface is 581} ft. above mean in which the state has exerted a large influence throughout sea-level, being the same as that of Lake Huron and 21 ft. below the Union. From the beginning of its government under its that of Lake Superior. Its area is 22,400 sq. m., and it has a first state constitution in 1835 until 1855 Michigan had a Demo- basin 68,100 sq. m. in area. cratic administration with the exception of the years 18401842, when opposition to the financial measures of the Democrats placed the Whigs in power. But it was in Michigan that the Republican party received its first official recognition, at a state convention held at Jackson on the 6th of July 1857, and from the beginning of the following year the administration has been Republican with the exception of two terms from 1883 to 1885, and from 1891 to 1893, when it was again Democratic. GOVERNORS OF MICHIGAN Territorial.

William Hull
Lewis Cass

Stevens Thompson Mason (acting)

George Bryan Porter

Stevens Thompson Mason (acting)

John Scott Horner (acting)

Stevens Thompson Mason.

William Woodbridge

James Wright Gordon (acting)

John Steward Barry

Alpheus Felch

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William L. Greenly (acting)
Epaphroditus Ransom
John Steward Barry
Robert McClelland

Andrew Parsons (acting)
Kinsley S. Bingham
Moses Wisner
Austin Blair

Henry Howland Crapo
Henry Porter Baldwin
John Judson Bagley
Charles Miller Croswell
David Howell Jerome
Josiah W. Begole
Russell Alexander Alger
Cyrus Gray Luce

Edwin Baruch Winans

John T. Rich
Hazen Smith Pingree
Aaron Thomas Bliss
Fred M. Warner.
Chase S. Osborn.

State.

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The shores of Lake Michigan are generally low and sandy, and the land slopes gradually to the water. The northern shore of the lake is irregular and more rugged and picturesque than the other shores, the summit of the highest peak being about 1400 ft. above the sea. On the eastern side are numerous sand hills, formed by the wind into innumerable fantastic shapes, sometimes covered with stunted trees and scanty vegetation, but usually bare and rising to heights of from 150 to 250 ft. The south-western shore is generally low, with sand hills covered with shrivelled pines and bur oaks. Along 1805-1813 the western shore woods and prairies alternate, interspersed 1813-1831 1831 with a few high peaks. The cliffs on the east shore of Green 1831-1834 Bay form a bold escarpment, and from this ridge the land 1834-1835 slopes gradually to the lake. With the exception of Green and 1835 Traverse bays, Lake Michigan has few indentations of the coast 1835-1840 line, and except at the north end it is free from islands. The 1840-1841 waters near shore are shoal, and as there are few harbours of 1841-1842 refuge of easy access navigation is dangerous in heavy storms. 1842-1846 Around the lake the climate is equable, for, though the winter 1846-1847 1847-1848 is cold and the summer hot, the waters of the lake modify 1848-1850 the extremes, the mean temperature varying from 40° to 54° F. 1850-1851 The average annual rainfall is 33 in. The finest agricultural 1851-1853 land in the United States is near the lake, and there is an immense 1855-1859 trade in all grains, fruits, livestock and lumber, and in products 1859-1861 such as flour, pork, hides, leather goods, furniture, &c. Rich 1861-1865 lead and copper mines abound, as also salt, iron and coal. 1865-1869 Abundant water power promotes manufactures of all kinds. 1869-1873 1873-1877 Beer and distilled liquors are largely manufactured, and fine 1877-1881 building stone is obtained from numerous quarries. 1881-1883 The lake is practically tideless, though true tidal pulsations 1883-1885 amounting to 3 in. in height are stated to have been ob1885-1887

1853-1855

1887-1891 served in Chicago. In the water of the lake there is a general 1891-1893 set of current towards the outlet at the strait of Mackinac, 1893-1897 following the east shore, with slight circular currents in the 1897-1901 main portion of the lake and at the northern end around

1901-1905

1905-1911

1911

AUTHORITIES.-The Publications of the Michigan Geological Survey (Detroit, Lansing and New York, 1838 seq.) deal largely with the mining districts of the upper peninsula. Alexander Winchell, Michigan: Being Condensed Popular Sketches of the Topography, Climate and Geology of the State (1873), is in large measure restricted to the south half of the state. W. J. Beal and C. F. Wheeler, Michigan Flora (Lansing, 1892), contains the results of an extensive study of the subject. See also the Twelfth Census of the United States (Washington, 1901-1902); Silas Farmer, Michigan Book: a State Cyclopaedia with Sectional County Maps (Detroit, 1901); Bela Hubbard, Memorials of a Half-Century (New York, 1887), a well written account of observations, chiefly upon scenery, fauna, flora and climate; Webster Cook, Michigan: its History and Government (New York, 1905), written primarily for use in schools and containing a reference bibliography; A. C. McLaughlin, History of Higher Education in Michigan, in Circulars of Information of the United States Bureau of Education (Washington, 1891), being an account of the origin of the public school system and an individual account of each higher institution of learning; T. M. Cooley, Michigan: a History of Government (Boston, 1885), a critical but popular narrative by an eminent jurist; J. V. Campbell, Outlines of the Political History of Michigan (Detroit, 1876), also by a jurist of the state; Henry M. Utley and Byron M. Cutcheon, Michigan as a Province, Territory and State (4 vols., New York, 1906); Michigan Pioneer and Historical Society, Historical Collections: Collections and Researches (Lansing, 1877 seq.); and Publications of the Michigan Political Science Association (Ann Arbor, 1893).

MICHIGAN, LAKE, the only one of the great lakes of North America wholly within the boundaries of the United States, and the second largest body of fresh water in the world. It lies S. of Lake Superior and W. of Lake Huron, between 41° 37′ and 46° 05′ N. and 84° 45′ and 88° W.; is bounded on the N. and E. by the state of Michigan, on the W. by Wisconsin, while Illinois and Indiana touch its S. end. It is 320 m. long, and has an average width of 65 m. The maximum depth recorded by the United States Lake Survey is

Beaver island. These currents vary in speed from 4 to 10 m. per day. Surface currents are set up by prevailing winds, which also seriously affect water levels, lowering the water at Chicago and raising it at the strait, or the reverse, so as greatly to inconvenience navigation. The level of the lake is subject to seasonal fluctuations, reaching a maximum in midsummer and a minimum in February, as well as to alternating cycles of years of high and low water. Standard highwater of 1838 was 3.36 ft. above mean level and standard low-water of 1895, 2.82 ft. below that datum, giving an extreme recorded range slightly over 6ft.

The northern portion of the lake only is covered with ice in winter, and ice never reaches as far south as Milwaukee. Milwaukee River remains closed on an average for one hundred days-from the beginning of December to the middle of March. The average date of the opening and closing of navigation at the strait of Mackinac, where the ice remains longest, is the 17th of April and the 9th of January respectively. Regular lines of steamers specially equipped to meet winter conditions, most of them being car ferries, cross the lake and the strait of Mackinac all winter between the various ports.

No notable rivers flow into Lake Michigan, the largest being the Big Manistee and Muskegon on the cast shore, and on the west shore the Menominee and the Fox, both of which empty into Green Bay, chiefly artificial, usually located at the mouths of streams, the the most important arm of the lake. The numerous harbours are improvements consisting of two parallel piers extending into the lake and protecting a dredged channel. Sand bars keep filling up the mouths of these channels, necessitating frequent dredging and extension of the breakwaters, work undertaken by the Federal government, which also maintains a most comprehensive and complete system of aids to navigation, including lighthouses and lightships, fog alarms, gas and other buoys, life-saving, storm signal and weather report stations.

1 Report of Deep Waterways Commission (1896).

Chicago, the principal port on the lake, is at its south-west extremity, and is remarkable for the volume of its trade, the number of vessels arriving and departing exceeding that of any port in the United States, though the tonnage is less than that of New York. It is a large railway centre, and the number and size of the grain elevators are noticeable. The port is protected by breakwaters enclosing a portion of the lake front. The level of the city above the lake being only 14 ft., much difficulty arose in draining it. A sanitary and ship canal 34 m. long was therefore completed in 1900 to divert the Chicago river, a small stream that flows into the lake, into the head waters of the Des Plaines river and thence through the river Joliet into the Mississippi at St Louis. The discharge of water is by law so regulated that the maximum flow shall not exceed 250,000 cub. ft. per minute. The effect upon the permanent level of the lakes of the withdrawal of water through this artificial outlet is receiving much attention. Milwaukee, situated on the shore of Milwaukee Bay, on the western side of the lake, is, next to Chicago, the largest city on the lake, and has a large commerce and a harbour of refuge. Escanaba, on Little Bay de Noc (Noquette). in the northern part of the lake, is a natural harbour and a large iron shipping port. Green Bay and Lake Michigan are connected by a canal extending from the lake to the head of Sturgeon Bay. Lake Michigan is connected at its north-east extremity with lake Huron by the strait of Mackinac, 48 m. long, with a minimum width of 6 m.; the water is generally deep and the shoals lying near the usually

travelled routes are well marked.

BIBLIOGRAPHY.-Sailing directions for Lake Michigan, Green Bay, and the Strait of Mackinac, U.S. Navy Hydrographic office publication No. 108 B (Washington, 1906); Bulletin No. 17: Survey of Northern and North-western Lakes, U.S. Lake Survey Office (Detroit, Michigan, 1907); St Lawrence Pilot, 7th ed., Hydrographic Office Admiralty (London, 1906); Effect of Withdrawal of Water from Lake Michigan by the Sanitary District of Chicago, U.S. House of Representatives' Document No. 6, 59th Congress, 1st session (Washington, 1906). (W. P. A.) MICHIGAN, UNIVERSITY OF, one of the principal educational institutions of the United States, situated at Ann Arbor, Michigan. It embraces a department of literature, science and the arts (including industry and commerce), opened in 1841, and including a graduate school, organized in 1892; a department of medicine and surgery, opened in 1850; a department of law, opened in 1859; a school of pharmacy, opened as a separate department in 1876; a homoeopathic medical college, opened in 1875; a college of dental surgery, opened in 1875; and a department of engineering, separately organized in 1895, which includes courses in marine engineering, architecture, and architectural engineering. The university was one of the first to admit women, having opened its doors to them in 1870 as a natural consequence of its receiving aid from the state (since 1867), and since 1900 they have constituted nearly one-half of the student body in the department of literature, science and the arts. In 1907-1908 there were in all departments 350 instructors and 5013 students (1796 in the department of literature, science and the arts; 1354 in the department of engineering; 391 in the department of medicine and surgery; 791 in the department of law; 101 in the school of pharmacy; 82 in the homoeopathic medical college; 168 in the college of dental surgery; and 1070 in the summer sessions). Besides the several main department buildings there is a library building, a museum building, several laboratories, a gymnasium for men, and a gymnasium for women. The general library in 1908 contained 172,940 volumes, 3800 pamphlets, and 3370 maps, and the several department libraries brought the total up to 222,600 volumes and 5000 pamphlets. The general museum contains large zoological collections, geological and anthropological collections, including the exhibit of the Chinese government at the New Orleans Exposition, which was given by the government to the university in 1885; there are besides several special collections in some of the laboratories. The astronomical observatory is surmounted by a movable dome in which is mounted a refracting telescope having a thirteen-inch object glass. The several laboratories are equipped for use in instruction in physics, chemistry, mineralogy, geology, zoology, psychology, botany, forestry, actuarial work, engineering, histology, physiology, hygiene, electrotherapeutics, pathology, anatomy and dentistry.

The university is governed from without by a board of eight regents elected by popular suffrage, two biennially, at the same time as the election of judges of the supreme court; from

university senate, in which the faculty of each department within the government is to a large extent in the hands of a is represented. The university is maintained by a permanent annuity of $30,000, derived from the land set apart for it by the Ordinance of 1787, by the proceeds of a three-eighths mill tax, and by small fees paid by the students. Its organic relation to the other public schools of the state was well established in 1870, when it was provided that graduates from such high schools as had been examined and approved by a committee of the university should be admitted without examination; one of the most important functions of the university is to prepare students for teaching in the high schools.

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The first charter for a university within what is now the state was granted by the governor and judges of the Territory of Michigan in 1817, for a Catholepistemiad," or University of Michigania, with a remarkable" Greek "system of nomenclature for its courses and faculties; this institution did practically no teaching. A second charter was granted in 1821, for a University of Michigan in Detroit; but little was accomplished until the admission of Michigan into the Union as a state in 1837, when by the third charter the aim was to model the institution after the German university minus the theological department, and the university was entrusted to a board of regents and a chancellor appointed by the governor. Branches to correspond to the German gymnasia were established in the principal towns before any money was spent on the University proper, but the question of the constitutionality of their establishment and maintenance arose, and they were soon discontinued. Plans for building at Ann Arbor were begun in 1838. The first class graduated in 1845. The department of literature, science and the arts was at first much like a New England college. For some time the prospects did not seem promising; but in 1851 a new state constitution provided that the regents should be elected, and directed them to choose a president; and it was under the administration (1852-1863) of the first incumbent of that office, Henry Philip Tappan (1805-1881), that the present broad and liberal basis was established. Although he was a Presbyterian clergyman, he endeavoured at the outset to substitute the tests of scholarship for those of religion; at the same time a scientific course was introduced, courses in pedagogy followed, and in 1878 the elective system, which has since rapidly expanded, was established. President Tappan was succeeded in 1863 by Erastus Otis Haven (18201881), who resigned in 1869, and was succeeded temporarily (1869-1871) by Professor Henry S. Frieze (1817-1889), and in 1871 by James Burrill Angell (b. 1829),' who resigned in 1909. In 1871-1872 the German seminar method was introduced in graduate work in history, by Prof. Charles Kendall Adams (18351902), afterwards president of Cornell University (1885-1892) and of the University of Wisconsin (1892-1902).

See B. A. Hinsdale and I. N Demmon, History of the University of Michigan (Ann Arbor, 1906); Elizabeth M. Farrand, History of the University of Michigan (Ann Arbor, 1885); and The Quarter Centennial of the Presidency of James Burrill Angell (Ann Arbor, 1896).

MICHIGAN CITY, a city of Laporte county, Indiana, U.S.A., on the S.E. shore of lake Michigan, about 40 m. E. by S. of Chicago. Pop. (1890) 10,776; (1900), 14,850, of whom 3662 were foreign-born; (1910 census) 19,027. Michigan City is served by the Chicago, Indianapolis & Louisville, the Lake Erie & Western, the Michigan Central and the Père Marquette railways, by interurban electric lines, and by several lines of lake steamships. The city contains a United States Life Saving Station and the Indiana State Prison, and is the seat of a Protestant Episcopal bishop. Its transportation. he was assistant librarian in 1849-1850 and was professor of modern 1 President Angell graduated in 1849 at Brown University, where languages in 1853-1860; was editor of the Providence Journal in 1860-1866; was president of the University of Vermont in 1866-1871

was United States minister to China in 1880-1881, was a member between the United States and Great Britain, was chairman of the of the joint commission of 1887-1888 to settle fishery disputes international deep waterways commission in 1896, and in 1897-189 S was United States minister to Turkey.

advantages make it one of the principal commercial cities in | regions, and sugar-cane, tobacco, coffee and tropical fruits the state. Its shipments of lumber are of special importance, and it has also a large transshipment trade in salt and iron ore. The total factory product in 1905 was valued at $6,314,226. The municipality owns and operates its water-works system. Michigan City was first settled about 1830, was incorporated as a village in 1837, and was first chartered as a city in 1867. MICHMASH, a place in Benjamin, about 9 Roman miles north of Jerusalem (Onom, ed. Lag., p. 280), the scene of one of the most striking episodes in Old Testament history (1 Sam. xiv.). Though it did not rank as a city (not being mentioned in Joshua xviii. 21 seq.), Michmash was recolonized after the exile (Neh. xi. 31), and, favoured by the possession of excellent wheat-land (Mishna, Men. viii. 1), was still a very large village (Maxμás) in the time of Eusebius. The modern Mukhmas is quite a small place.

The historical interest of Michmash is connected with the strategical importance of the position, commanding the north side of the Pass of Michmash, which made it the headquarters of the Philistines and the centre of their forays in their attempt to quell the first rising under Saul, as it was also at a later date the headquarters of Jonathan the Hasmonaean (1 Macc. ix. 73). From Jerusalem to Mount Ephraim there are two main routes. The present caravan road keeps the high ground to the west near the watershed, and avoids the Pass of Michmash altogether. But another route, the importance of which in antiquity may be judged of from Isa. x. 28 sqq., led southwards from Ai over an undulating plateau to Michmash. Thus far the road is easy, but at Michmash it descends into a very steep and rough valley, which has to be crossed before reascending to Geba.' At the bottom of the valley is the Pass of Michmash, a noble gorge with precipitous craggy sides. On the north the crag is crowned by a sort of plateau sloping backwards into a round-topped hill. This little plateau, about a mile east of the present village of Mukhmas, seems to have been the post of the Philistines, lying close to the centre of the insurrection, yet possessing unusually good communica tion with their establishments on Mount Ephraim by way of Ai and Bethel, and at the same time commanding the routes leading down to the Jordan from Ai and from Michmash itself.

See further C. R. Conder, Tentwork ii. 112 seq.; and T. K. Cheyne in Encyc. Bib., s.v. (R. A. S. M.) MICHOACÁN, or MICHOACÁN DE OCAMPO, a state of Mexico touching on the Pacific, bounded N. by Jalisco and Guanajuato, E. by Mexico and Guerrero, S. by Guerrero and the Pacific, and W. by the Pacific, Colima, and Jalisco. Pop. (1900), 935,808, chiefly Indians and mestizos. Area, 22,874 sq. m. Its territory is divided into two nearly equal parts by the eastern branch of the Sierra Madre Occidental, the northern part belonging to the great central plateau region. and the southern to an extremely broken region formed by the diverging branches of the Sierra Madre, with their wooded terraces and slopes and highly fertile valleys. The general slope of the southern part is southward to the river Balsas, or Mescala, which forms its boundary-line with Guerrero. The narrow coastal zone on the Pacific is only 101 m. long and has no ports or towns of importance, the slopes of the Sierra Madre del Pacifico being precipitous and heavily wooded and the coastbelt sandy, hot and malarial. The Lerma, on the northern frontier, and the Balsas on the southern, are the only rivers of importance of the state, their tributaries within its boundaries being small and swift-flowing. There are several large and beautiful lakes in the state, the best known of which are Patzcuaro and Cuitzéo. Lake Chapala lies on the northern boundary. | Michoacán lies within the most active volcanic region of Mexico: Jorullo (4262 ft.) is near its southern line, and Colima (12,750 ft.) is northwest of it in the state of Jalisco. Earthquake shocks are numerous, and Colima was in violent eruption in 1908-1909. The highest summit in the state is Tancitaro (12,660 ft.). The climate is for the most part temperate and healthy, but it is hot and unhealthy on the coast. Michoacán is essentially a mining region, producing gold, silver, lead and cinnabar, and having rich deposits of copper, coal, petroleum and sulphur. The natural products include fine cabinet and construction woods, rubber, fruit, palm oil and fibres. The soil of the valleys is highly fertile, and produces cereals in the higher So Isa. x. 28 describes the invader as leaving his heavy baggage at Michmash before pushing on through the pass.

in the lower. Though the plateau region was settled soon after the arrival of the Spaniards in Mexico, there are large districts on the southern and Pacific slopes that still belong almost exclusively to the Indians. Besides Morelia, the capital and largest city, the principal towns of the state are: La Piedad (pop. 15,123), an important commercial town on the Lerma river and on the Mexican Central railway, 112 m. N.N.W. of Morelia; Zamora (10,373), 75 m. W.N.W. of Morelia; Uruapan (98c8), on the Mexican National, 55 m. S. W. of Morelia in a mountainous district celebrated for the fine quality of its coffee; Puruandiro (7782), a commercial and manufacturing town 40 m. N.W. of Morelia; Patzcuaro (7621), on Patzcuaro lake, with a station on the Mexican National, 7550 ft. above sea level; Sahuayo (7408), 103 m. W. by N. of Morelia near Lake Chapala; Zitacuaro (6052), 60 m. S.E. of Morelia on a branch of the Mexican National, which also passes through the mining town of Angan. gueo (9115) in the same district; and Tacambaro (5070), 46 m. S.S.W. of Morelia in a fertile valley of the Rio de las Balsas basin.

MICKIEWICZ, ADAM (1798-1855), Polish poet, was born in 1798, near Nowogrodek, in the present Russian government of Minsk, where his father, who belonged to the schlachta or lesser nobility, had a small property. The poet was educated at the university of Vilna; but, becoming involved in some political troubles there, he was forced to terminate his studies abruptly, and was ordered to live for a time in Russia. He had already published two small volumes of miscellaneous poetry at Vilna, which had been favourably received by the Slavonic public, and on his arrival at St Petersburg he found himself admitted to the leading literary circles, where he was a great favourite both from his agreeable manners and his extraordinary talent of improvisation. In 1825 he visited the Crimea, which inspired a collection of sonnets in which we may admire both the elegance of the rhythm and the rich Oriental colouring. The most beautiful are The Storm, Bakchiserai, and Grave of the Countess Potocka.

In 1828 appeared his Konrad Wallenrod, a narrative poem describing the battles of knights of the Teutonic order with the heathen Lithuanians. Here, under a thin veil, Mickiewicz represented the sanguinary passages of arms and burning hatred which had characterized the long feuds of the Russians and Poles. The objects of the poem, although evident to many, escaped the Russian censors, and it was suffered to appear, although the very motto, taken from Machiavelli, was significant: "Dovete adunque sapere come sono duo generazioni da combattere . . . bisogna essere volpe e leone." This is a striking poem and contains two beautiful lyrics. After a five years' exile in Russia the poet obtained leave to travel; he had secretly made up his mind never to return to that country or Poland so long as it remained under the government of the Muscovites. Wending his way to Weimar, he there made the acquaintance of Goethe, who received him cordially, and, pursuing his journey through Germany, he entered Italy by the Splügen, visited Milan, Venice, and Florence, and finally took up his abode at Rome. There he wrote the third part of his poem Dziady, the subject of which is the religious commemoration of their ancestors practised among Slavonic nations, and Pan Tadeusz, his longest poem, by many considered his masterpiece. A graphic picture is drawn of Lithuania on the eve of Napoleon's expedition to Russia in 1812. In this village idyll, as Brückner calls it, Mickiewicz gives us a picture of the homes of the Polish magnates, with their somewhat boisterous but very genuine hospitality. We see them before us, just as the knell of their nationalism, as Brückner says, seemed to be sounding, and therefore there is something melancholy and dirgelike in the poem in spite of the pretty love story which forms the main incident. Mickiewicz turned to Lithuania with the loving eyes of an exile, and gives us some of the most delightful descriptions of Lithuanian skies and Lithuanian forests. He describes the weird sounds to be heard in the primeval woods in a country where the trees were sacred. The cloud-pictures

are equally striking. There is nothing finer in Shelley or Wordsworth.

In 1832 Mickiewicz left Rome for Paris, where his life was for some time spent in poverty and unhappiness. He had married a Polish lady, Selina Szymanowska, who became insane. In 1840 he was appointed to the newly founded chair of Slavonic languages and literature in the Collège de France, a post which he was especially qualified to fill, as he was now the chief representative of Slavonic literature, Pushkin having died in 1837. He was, however, only destined to hold it for a little more than three years, his last lecture having been given on the 28th of May 1844. His mind had become more and more disordered under the influence of religious mysticism. He had fallen under the influence of a strange fanatic named Towianski. His lectures became a medley of religion and politics, and thus brought him under the censure of the Government. A selection of them has been published in four volumes. They contain some good sound criticism, but the philological part is very defective, for Mickiewicz was no scholar, and he is obviously only well acquainted with two of the literatures, viz. Polish and Russian, the latter only till the year 1830. A very sad picture of his declining days is given in the memoirs of Herzen. At a comparatively early period the unfortunate poet exhibited all the signs of premature old age; poverty, despair and domestic affliction had wrought their work upon him. In 1849 he founded a French newspaper, La Tribune des peuples, but it only existed a year. The restoration of the French Empire seemed to kindle his hopes afresh; his last composition is said to have been a Latin ode in honour of Napoleon III. On the outbreak of the Crimean War he was sent to Constantinople to assist in raising a regiment of Poles to take service against the Russians. He died suddenly there in 1855, and his body was removed to France and buried at Montmorency. In 1900 his remains were disinterred and buried in the cathedral of Cracow, the Santa Croce of Poland, where rest, besides many of the kings, the greatest of her worthies.

"

Mickiewicz is held to have been the greatest Slavonic poet, with the exception of Pushkin. Unfortunately in other parts of Europe he is but little known; he writes in a very difficult language, and one which it is not the fashion to learn. There were both pathos and irony in the expression used by a Polish lady to a foreigner, "Nous avons notre Mickiewicz à nous.' He is one of the best products of the so-called romantic school. The Poles had long groaned under the yoke of the classicists, and the country was full of legends and picturesque stories which only awaited the coming poet to put them into shape. Hence the great popularity among his countrymen of his ballads, each of them being connected with some national tradition. Besides Konrad Wallenrod and Pan Tadeusz, attention may be called to the poem Grazyna, which describes the adventures of a Lithuanian chieftainess against the Teutonic knights. It is said by Ostrowski to have inspired the brave Emilia Plater, who was the heroine of the rebellion of 1830, and after having fought in the ranks of the insurgents, found a grave in the forests of Lithuania. A fine vigorous Oriental piece is Farys. Very good too are the odes to Youth and to the historian Lelewel; the former did much to stimulate the efforts of the Poles to shake off their Russian conquerors. It is enough to say of Mickiewicz that he has obtained the proud position of the representative poet of his country; her customs, her superstitions, her history, her struggles are reflected in his works. It is the great voice of Poland appealing to the nations in her

agony.

His son, Ladislas Mickiewicz, wrote Vie d'Adam Mickiewicz (Posen, 1890-1895. 4 vols.), also Adam Mickiewicz, sa vie et son œuvre (Paris, 1888) Translations into English (1881-1885) of Konrad Wallenrod and Pan Tadeusz were made by Miss Biggs. See also Euvres poétiques de Mickiewicz, trans. by Christien Ostrowski (Paris, 1845). (W. R. M.)

MICKLE, WILLIAM JULIUS (1735-1788), Scottish poet, son of the minister of Langholm, Dumfries-shire, was born on the 28th of September 1735. He was educated at the Edinburgh high school, and in his fifteenth year entered business as a

a

brewer. His father purchased the business, and on his death William Mickle became the owner; but he neglected his affairs, devoting his time to literature, and before long became bankrupt. In 1763 he went to London, where in 1765 he published poem in the manner of Spenser " called the Concubine (afterwards Syr Martyn); was appointed corrector to the Clarendon Press, and translated the Lusiad of Camoens into heroic couplets (specimen published 1771, whole work, 1775). So great was the repute of this translation that when Mickle-appointed secretary to Commodore Johnstone-visited Lisbon in 1779, the king of Portugal gave him a public reception. On his return to London he was appointed one of the agents responsible for the distribution of prize-money, and this employment, in addition to the sums brought him by his translation of the Lusiad, placed him in comfortable circumstances.

It has been suggested that the Scottish poem There's nae luck aboot the hoose" was Mickle's. It is more likely, however, that Jean Adams was the author. Scott read and admired Mickle's poems in his youth, and founded Kenilworth on his ballad of Cumnor Hall, which appeared in Thomas Evans's Old Bullads... with some of Modern Date (1784).

MICMAC, a tribe of North American Indians of Algonquian stock. They formerly occupied all Nova Scotia, Cape Breton and Prince Edward Islands, and portions of New Brunswick, Quebec and Newfoundland. They fought on the French side in the colonial wars. They are now civilized and almost all profess Catholicism. They number some 4000 in settled communities throughout their former territory.

There is an excellent account of the Micmac Indians in J. G. Millais's Newfoundland and its Untrodden Ways (1908).

MICON, a Greek painter of the middle of the fifth century B.C. He was closely associated with Polygnotus of Thasos, in conjunction with whom he adorned the Painted Stoa, at Athens, with paintings of the battle of Marathon and other battles. He also painted in the Anaceum at Athens.

MICROCLINE, a rock-forming mineral belonging to the feldspar group (see FELSPAR). Like orthoclase it is a potashfeldspar with the formula KAISi30, but differs from this in crystallizing in the anorthic system. The name (from Greek μкρós, small, and kλivew, to incline) was given by A. Breithaupt in 1830, and has reference to the fact that the angle (89° 30′) between the two perfect cleavages differs but little from a right angle: the species was, however, first definitely established by A. Des Cloizeaux in 1876. The crystals and cleavage masses are very like orthoclase in appearance, and the hardness (6) and specific gravity (2.56) are the same for the two minerals; there are, however, important differences in the twinning and in the optical characters. In addition to being twinned according to the same laws as orthoclase, microcline is repeatedly twinned according to the albite-law and the pericline-law, producing a very characteristic grating or cross-hatched structure which is especially prominent when thin sections of the mineral are examined in polarized light. This lamellar structure is often on a very minute scale, sometimes so minute as to be almost indistinguishable: it has therefore been suggested that orthoclase is really a microcline in which the twin-lamellae are ultramicroscopic. In a section parallel to the basal plane c (001) of a microcline crystal the lamellae do not extinguish optically parallel to the edge bc as in orthoclase, but at an angle of 15° 30'; further, the obtuse bisectrix of the optic axes in microcline is inclined to the normal of the plane b (010) at an angle of 15° 26'. Green microcline is distinctly pleochroic.

Microcline occurs, usually with orthoclase, as a constituent of pegmatites, granites and gneisses; it is rare in porphyries and is not known in volcanic rocks. A beautiful crystallized variety of a bright verdigris-green colour is known as amazonstone (q..). Chesterlite is a variety occurring as crystals on dolomite in Chester county, Pennsylvania.

Closely allied to microcline is the anorthic soda-potash-feldspar known as anorthoclase or natron-microcline. Here sodium predominates over potassium and a little calcium is also often present. the formula being (Na, K) AISI3O. It resembles microcline in having a cleavage angle of very nearly 90° and in the cross-hatched struc ture, the latter being usually very minute and giving rise to a mottled

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taking a journey to Yorkshire in 1639 to see Gascoigne, writes thus to his friend Jeremiah Horrocks. "The first thing Mr Gascoigne showed me was a large telescope amplified and adorned with inventions of his own, whereby he can take the diameters of the sun and moon, or any small angle in the heavens or upon the earth, most exactly through the glass, to a second." The micronicter so mentioned fell into the possession of Richard Townley of Lancashire, who exhibited it at the meeting of the Royal Society held on the 25th of July 1667.

extinction. It is the characteristic feldspar of volcanic rocks which | inventor of the micrometer. William Crabtree, a friend of his, are rich in soda, and is typically developed in the lavas of the island of Pantelleria near Sicily and those of Kilimanjaro and Mount Kenya in East Africa: the rhomb-shaped porphyritic feldspars of the rhomb-porphyry" of southern Norway also belong here. (L. J. S.) MICROCOSM, a term often applied in philosophical and in general literature to man regarded as a "little world" (Gr. μικρός κόσμος) in opposition to the "macrocosm," great world, in which he lives. From the dawn of speculative thought in Greece the analogy between man and the world has been a common-place, and may be traced from Heraclitus and Empedocles, through Plato, Aristotle, the Stoics, the Schoolmen and the thinkers of the Renaissance down to the present day. Thus Lotze's comprehensive survey of mental and moral science is termed Microcosmus The most systematic expression of the tendency indicated by the term is the monadology of Leibnitz, in which the monad is regarded as containing within its own closed sphere an expression of the universe, the typical created monad being the human soul.

MICROCOSMIC SALT, or ammonium sodium hydrogen orthophosphate, NH,NaHPO,. 4H2O, so named by the alchemists because it is contained in the decomposing urine of man (the "microcosm "). It is interesting historically as being the raw material from which Brand prepared phosphorus, whence it is also called "salt of phosphorus." It may be obtained in large transparent crystals from a mixture of solutions of salammoniac and disodium phosphate, or by saturating a solution of monosodium phosphate with ammonia. When heated to redness, it leaves a transparent glass of sodium metaphosphate, NaPO3, which like borax dissolves most metallic oxides, with formation of glasses that often exhibit characteristic colours, and which may be used in the qualitative analysis of substances. (See CHEMISTRY, § Analytical.)

MICROMETER (from Gr. μkpós, small, μérpov, a measure), an instrument generally applied to telescopes and microscopes for measuring small angular distances with the former or the dimensions of small objects with the latter.

Before the invention of the telescope the accuracy of astronomical observations was necessarily limited by the angle that could be distinguished by the naked eye. The angle between two objects, such as stars or the opposite limbs of the sun, was measured by directing an arm furnished with fine "sights" (in the sense of the "sights" of a rifle) first upon one of the objects and then upon the other (q.v.), or by employing an instrument having two arms, each furnished with a pair of sights, and directing one pair of sights upon one object and the second pair upon the other. The angle through which the arm was moved, or, in the latter case, the angle between the two arms, was read off upon a finely graduated arc. With such means no very high accuracy was possible. Archimedes concluded from his measurements that the sun's diameter was greater than 27′ and less than 32'; and even Tycho Brahe was so misled by his measures of the apparent diameters of the sun and moon as to conclude that a total eclipse of the sun was impossible. Michael Maestlin in 1579 determined the relative positions of cleven stars in the Pleiades (Historia coelestis Lucii Baretti, Augsburg, 1666), and A. Winnecke has shown (Monthly Notices R.A.S., xxxix. 146) that the probable error of these measures amounted to about #2'.3

The invention of the telescope at once extended the possibilities of accuracy in astronomical measurements. The planets were shown to have visible disks, and to be attended by satellites whose distance and position angle relative to the planet it was desirable to measure. It became, in fact, essential to invent a micrometer" for measuring the small angles which were thus for the first time rendered sensible. There is now no doubt that William Gascoigne, a young gentleman of Yorkshire, was the first Grant, History of Physical Astronomy, p. 449.

This is an astonishing accuracy when the difficulty of the objects is considered. Few persons can see with the naked eye much less measure-more than six stars of the Pleiades, although all the stars measured by Maestlin have been seen with the naked eye by a few individuals of exceptional powers of eyesight.

The principle of Gascoigne s micrometer is that two pointers having parallel edges at right angles to the measuring screw, are moved in opposite directions symmetrically with and at right angles to the axis of the telescope. The micrometer is at zero when the two edges are brought exactly together. The edges are then separated till they are tangent to the opposite limbs of the disk of the planet to be measured, or till they respectively bisect two stars, the angle between which is to be determined. The symmetrical separation of a revolution of the screw are obtained by an index attached to one of the edges is produced and measured by a single screw; the fractions end of the screw, reading on a dial divided into 100 equal parts. The whole arrangement is elegant and ingenious. A steel cylinder (about the thickness of a goose-quill), which forms the micrometer screw, has two threads cut upon it, one-half being cut with a thread double the pitch of the other. This screw is mounted on an oblong box which carries one of the measuring edges; the other edge is moved by the coarser part of the screw relatively to the edge attached to the box, whilst the box itself is moved relatively to the axis of the telescope by the finer screw. This produces an opening and closing of the edges symmetrically with respect to the telescope axis. Flamsteed, in the first volume of the Historia coelestis, has inserted a series of measurements made by Gascoigne extending from 1638 to 1643. These include the mutual distances of some of the stars in the Pleiades, a few observations of the apparent diameter of the sun, others of the distance of the moon from neighbouring stars, and a great number of measurements of the diameter of the moon. Dr John Bevis (Phil. Trans. (1773), p. 190) also gives results of measurements by Gascoigne of the diameters of the moon, Jupiter, Mars and Venus with his micrometer.

Delambre gives the following comparison between the results of Gascoigne's measurements of the sun's semi-diameter and the computed results from modern determinations:Conn. d. temps. 16' 11" or 10" 16' 10".0 16' 11" 16' 11":4 16' 24"

October 25 (o.s.)

"

31 December 2

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Gascoigne.

16' 16"-8

Gascoigne, from his observations, deduces the greatest variation of the apparent diameter of the sun to be 35"; according to the Connaissance des temps it amounts to 32"-3. These results prove the enormous advance attained in accuracy by Gascoigne, and his indisputable title to the credit of inventing the micrometer.

Huygens, in his Systema saturnium (1659), describes a micrometer with which he determined the apparent diameters of the principal planets. He inserted a slip of metal, of variable breadth, at the focus of the telescope, and observed at what part it exactly covered the object under examination; knowing the focal length of the telescope and the width of the slip at the point observed, he thence deduced the apparent angular breadth of the object. The Marquis Malvasia in his Ephemerides (Bologna, 1662) describes a micrometer of his own invention. At the focus of his telescope he placed fine silver wires at right angles to each other, which, by their intersection, formed a network of small squares. The mutual distances of the intersecting wires he determined by counting, with the aid of a pendulum clock, the number of seconds required by an equatorial star to pass from web to web, while the telescope was adjusted so that the star ran parallel to the wires at right angles to those under investigation. In the Phil. Trans. (1667), No. 21, p. 373, Adrien Auzout gives the results of some measures of the diameter of the sun and moon made by himself, and this communication led to the letters of Townley and Bevis above referred to. The micrometer of Auzout and Picard was provided with silk fibres or silver wires instead of the edges of Gascoigne, but one of the silk fibres remained fixed while the other was moved by a screw. It is beyond doubt that Huygens independently discovered that an object placed in the common focus of the two lenses of a Kepler telescope appears as distinct and well-defined as the

Delambre, Hist. ast. moderne, ii. 590.

• Mém. acad. des sciences (1717), pp. 78 seq.

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