Remains of population observed on and near the Eocene plateau of northwestern New Mexico, by E. D. Cope, illustrated by a number of wood-cuts giving plans of structures; a report on the ruins of New Mexico, by O. Loew, and also another, by Lieut. R. Birnie, Jr.; on the Pueblo Languages of New Mexico, and of the Moquis of Arizona, by A. S. Gatschet.

Dr. Loew's papers contain analyses of the basalt of Abiquin,, of a zeolite, of garnets from the region of the "memorable diamond excitement," chrysolite, the green feldspar of Pike's Peak, soils and grasses.

6. Geological Survey of the Territories, under the Interior Department, Dr. F. V. HAYDEN in charge.-(1.) New Publications to be issued during the year 1876. The following publications connected with the U. S. Geological Survey of the Territories under the direction of Prof. F. V. Hayden, are in press, and will be issued during the year 1876: 1. The Invertebrate Paleontology of the Western Territories, by F. B. MEEK, making Volume IX of the quarto series. It will contain 600 pages of text and 45 plates; over 500 pages are already printed. 2. The Fossil Flora of the Lignitic Group, by LEO LESQUEREUX, making Volume VII of the quarto series. It is illustrated by 65 plates. 3. Monograph of the North American Rodentia, by Messrs. COUES and ALLEN, to constitute Volume X of the quarto series, and to contain numerous plates. 4. Monograph of the Geometrical Moths, by Dr. A. S. PACKARD, to constitute Volume XI of the quarto series. It will be illustrated by 13 plates, some of which contain from 75 to 100 figures. 5. Ethnography and Philology of the Hidatsa Indians, by Dr. WASHINGTON MATHEWS, U. S. A. This volume is now passing through the press, and will prove one of great interest; it will contain about 500 octavo pages. 6. Annual Report of the U. S. Geological Survey for 1874, in octavo, now in the press. 7. The Annual Report of the Survey for 1875, which will go to press about May 1st. 8. Bulletin of the Survey for 1876, Volume II. This volume will be issued in numbers, and will comprise about 200 pages of text, with 30 octavo plates. The ancient remains of Southern Colorado, Utah and Arizona will be described by Messrs. Holmes and Jackson. It will also contain an important paper on the ancient skulls, with numerous illustrations. Other volumes are in process of preparation, and may be printed before the end of the year.

(2.) Descriptive Catalogue of the Photographs, W. H. JACKSON, Photographer. The Catalogue of photographs of the Survey is enlarged in this edition by a list of those taken during the past year. These include three series: one, of the very unusual size of twenty by twenty-four inches; another, measuring five by eight inches; and a third, stereoscopic. The first, as we know from an examination of them, are of unusual beauty and perfection-the largest and grandest the Rocky Mountain region has yet afforded. Those of the second series, fifty-six in number, include many views of the ancient stone cliff ruins and cave towns of the San Juan

art.

region, besides others of the Moquis adobe villages, and many landscapes; and all are admirable specimens of the photographic The country owes much to the Survey under Dr. Hayden for the knowledge of the Rocky Mountain territories which has been distributed through the country by means of its numerous and excellent photographs, as well as through its Reports.

(3.) Models. To the Survey, the science of the country is indebted also for a model in plaster of the Elk Mountains. It is made on a scale of 1 inch to a mile, aud corresponds to an area of 200 square miles. One copy is to be colored to show the actual features of the region, and thus to exhibit its geological structure. The model has been prepared by the artist, W. H. Holmes. The same artist has executed a model of one of the two-story cliff houses of the San Juan Region, and another of a ruined village in southwestern Colorado. The cliff in the former has a height above the house of 200 feet vertically. (See Bulletin, 2nd Ser., No. 1, p. 20.) A model of a cliff house in Arizona has been made by the Photographer of the Expedition, Mr. W. H. Jackson, on a scale of six feet to an inch. The model is colored so as to represent exactly the appearance of the ruins. Still other models are in course of preparation. We learn that copies of these models will be furnished at cost to institutions desiring them.

7. Specific gravity Balance of R. Parish.-A balance, constructed on the same principle with that brought out by Mr. Parish, of Worcester, Mass., in the number of this Journal for last November, has been described and figured by President F. A. P. Barnard, in the second volume of Johnson's "New Universal Cyclopedia," published two or three months since in New York. It appears also that its author presented a paper on the instrument to the National Academy in November, 1874.

A charge of plagiarism on the part of Mr. Parish has been thrown out. The editors of this Journal deem it a duty to say that they know the charge to be without foundation. The paper presented to the National Academy has never been published, and even the editors knew nothing of it. Mr. Parish communicated with them on the subject of his balance first in February, 1875, more than a year since; and Prof. Thompson of the Institute of Industrial Science at Worcester has recently published the statement that Mr. Parish showed him a model of his balance in October, 1874, or before the time of the meeting of the National Academy above referred to. Moreover, Mr. Parish's paper in this Journal was in our hands a month before the publication of the 2nd volume of Johnson's Cyclopedia.

8. Bulletin of the Bussey Institution, Harvard University, Jamaica Plain. Part iv, pp. 285-372. 1875. This fourth part of the Bussey Institution Bulletin contains the following papers: Applied Zoology; the importance of its study to the practical agriculturist, by D. D. SLADE, M.D.; Report of the Director of the Arnold Arboretum, presented to the President and Fellows of Harvard University; A record of trials of various fertilizers upon

the plain-field of the Bussey Institution, results obtained in 1874, by F. H. STORER; the potato-rot, by W. G. FURLOW; A report on some Analyses of salt marsh hay and of bog hay, by F. H. STORER; On the fodder value of Apples, by F. H. STORER.

In his memoir upon the composition of hay prepared from the natural grasses of the salt marshes on the seaboard, and of the fresh-water marshes, or "meadows," in the interior, Prof. Storer gives the following analyses:

Dry Organic
Matter.
Fat, i.e., Matters

soluble in Ether.

7.06 7.47 44.53 32.71 84-71 2.94 5.19 6.79 46.15 33.16 86.10 2.30 4.63 46.67 33-31 84.60 1.76 29.39 73.67 2.35

White Weed (Leucanthemum

vulgare), cut in flower, ..... 10.87 6.44 7.00 44.69 31.00 82.69 2.42 Beach-pea Vines (Lathyrus maritimus),

7.62 7.38 18.70 37.53 28-79 85-01 4:32

In conclusion, Prof. Storer discusses the economical value of rough, low grade hays as compared with the "English" or upland hays.

9. American Museum, Central Park, New York.-This Museum is rapidly becoming one of the first of the country in scientific value. With Prof. Hall's collection of fossils, and the addition soon expected of a suite of Barrande's Bohemian species, it will take the lead of all as regards Paleozoic paleontology. The Museum has also very large collections of birds, including the collections of Prince Maximilian of Neuwied and extensive selections from those of M. Verneaux of Paris, and others of shells, insects, etc. The city of New York appropriated $500,000 for a building, and part of it is now completed. Already the persons visiting the Museum occasionally number over 10,000 in a day. The Museum is under the general charge of Professor Bickmore, a former student of Professor Agassiz.

10. Summer Schools of Zoology and Geology at Cornell University. These schools will commence soon after July 7th, and be continued for six weeks. In the Zoological department there will be instruction through lectures and laboratory work, by Prof. W. S. BARNARD, in Mollusks, Radiates, Worms and Protozoans; by Mr. J. H. COMSTOCK, in Insects and Crustaceans; by Prof. B. G. WILDER, in vertebrates, excluding Birds; by Dr. E. COUES, in Birds. Specimens, living or in alcohol, will be furnished the students for study, including "two specimens of Amphioxus, one for dissection and the other for preservation." Prof. Wilder will give information concerning the school to those desiring it. The Geological School is under Prof. T. B. Comstock. Instruction will be given by lectures, study of specimens, and by field excursions. Fee for each school, $30.00; $10.00 of it to be paid in April, or on the day of registration, and the rest in July, when the school

opens.

11. Annuaire De La Officina Central Meteorologica De Santiago De Chile, 1873.-The third and fourth year of the Annuaire of the Central Meteorological Office in Chili gives in detail the observations made at 13 stations during 1871 and 1872; as also an appendix in which is found a very excellent monograph on the earthquake of the 7th of July, 1873, by J. I. Vergara. The preface to the volume, which extends through 280 pages, gives very complete catalogues of earthquakes since 1849, and reviews of the meteorological conditions as shown by monthly and annual means during 1870, 1871 and 1872. The whole constitutes an important addition to our scanty knowledge of the meteorology of that section of the world; and it is to be hoped that Vergara will soon be able to extend the duties of the Meteorological Office, so as to add, to these climatological studies, those other special investigations into atmospheric phenomena, which the peculiar nature of the territory of Chili especially invites.

C. A.

Statement and Exposition of Certain Harmonies of the Solar System; by Stephen Alexander, LL.D., Professor of Astronomy, College of New Jersey. Smithsonian Contributions to Knowledge, No. 280. 96 pp. 4to. Washington, D. C., March, 1875.-Professor Alexander's Memoir does not admit of an abstract, and we therefore announce it only, referring to it for his arguments and conclusions.

Half-Hour Recreations in Natural History of Estes and Laureat, Boston. HalfHours with Insects, by A. S. Packard, Jr. Part 8. pp. 225-256, 1875.

Half-Hour Recreations in Popular Science of Estes and Laureat. No. 16, the Ice age in Britain, by Prof. Geikie, and Causes of the degeneracy of Teeth, by Prof. H. S. Chase. pp. 105-136. 1875.

Förster, E. Geschichte der Italienischen Kunst. Leipzig, 1875. P. O. Weigel.

Vierter Band. 8vo, pp. 525.

Wessely, J. E. Anleitung zur Kenntniss und zum Sammeln der Werke des Kunstdruckes. Mit zwei Tafeln Monogramme. 8vo, pp. viii, 338. Leipzig, 1875. P. O. Weigel.

Emile Kopp. -For the biographical notice of Prof. Kopp, on p. 80, this Journal is indebted to Dr. F. H. Storer.

OBITUARY.

GEORGE POULETT SCROPE, the eminent author of works and memoirs on volcanoes, died on the 18th of January, at his residence near Cobhan, Surrey, at the age of 79 years.

APPENDIX.

ART. XXX.-Principal Characters of the Tillodontia: by O. C. MARSH. (With two plates.)

THE Eocene deposits of North America have yielded two new orders of extinct mammals, the Dinocerata, and the Tillodontia, both of great interest, and widely different from all known groups, as well as from each other. The latter order, recently established by the writer,* is comparatively little known, as the animals representing it are of moderate size, and but few of their remains have yet been discovered. The typical genus of this order is Tillotherium, the more important characters of which can now be readily determined from specimens in the Yale Museum. This genus, therefore, will be mainly used in the present article to illustrate the order.

Tillotherium Marsh, 1873.†

The skull in this genus resembles in its general form that of Ursus. It is of moderate length, much elevated in the frontal region, and with the zygomatic arches widely expanded. (Plate VIII.) The posterior portion of the cranium is depressed, and much constricted behind the fronto-parietal suture. The temporal fossæ are large, and separated by an obtuse sagittal crest. There is no postorbital process. The frontal bones are large, and inflated with air cavities. The nasals are elongate, broad posteriorly, and narrow in front, where they unite with the premaxillaries. The latter are massive, and project forward beyond the nasals. They are united only by a slender bridge of bone, below the anterior narial aperture.

The orbit is confluent with the temporal fossa, which is largely formed below by the squamosal. The latter sends outward and forward a strong zygomatic process, and, downward, a short, obtuse, post-glenoid tubercle, which bounds in front the external auditory meatus. This opening is bounded behind by the posttympanic process of the squamosal, which unites directly with the paroccipital. The tympanic portion of the periotic does not reach the external surface. The articular face for the condyle of the lower jaw is but very slightly concave. (Plate IX.) The malar bone is slender, and forms the anterior * This Journal, vol ix, p. 221, March, 1875. + Vol. v, p. 485. AM. JOUR. SCI.-THIRD SERIES, VOL. XI, No. 63.--MARCH, 1876