MR. DARWIN'S NEW WORK. Now Ready, 5th THOUSAND, with Illustrations, 2 vols. crown 8vo. 248. The DESCENT of MAN, and on SELECTION in RELATION to SEX. By CHARLES DARWIN, F.R.S. Also, by the same Author, The ORIGIN of SPECIES, by MEANS of NATURAL SELECTION; or, The Preservation of Favoured Races in the Struggle for Life. 5th Edition. Woodcuts. Post 8vo. 148. The VARIATION of ANIMALS and PLANTS UNDER DOMESTICATION. In post 8vo. pp. 900, with Plate and 698 Woodcuts, price 15s. the FOURTH EDITION, revised and enlarged, ELEMENTARY TREATISE ON PHYSICS, Experimental and Applied, for the use of Colleges and Schools. Translated and edited from GANOT's Eléments de Physique (with the Author's sanction) by E. ATKINSON, Ph.D. F.C.S. Prof. of Experimental Science, R.M. Coll. Sandhurst. London: LONGMANS, GREEN, and CO. Paternoster Row. PROFESSOR OWEN'S WORK ON VERTEBRATE Complete in 3 vols. 8vo. with 1,472 Woodcuts, 3rd Thousand. Illustrations. 2 vols. 8vo. THE COMPARATIVE ANATOMY 28s. Now ready, medium 8vo. with twelve page Woodcuts and Plans, price 21s. HE SCHOOLS FOR THE PEOPLE. THE and PHYSIOLOGY of the VERTEBRATE ANIMALS. By RICHARD OWEN, F.R.S. D.C.L. &c. Superintendent of the Natural History Departments, British Museum. To every naturalist it will prove indispensable, and the vast accumulation of facts it contains will render it a useful book even to those whose occupations are less directly connected with Anatomy and Physiology.' The LANCET. VOL. I. Fishes and Reptiles, with 452 Woodcuts, price 21s. VOL. II. Warm-blooded Vertebrates, with 406 Woodcuts, 21s. VOL. III. Mammalia, including MAN, with copious INDEXES to the whole work, and 614 Woodcuts, price 31s. 6d. cloth. London: LONGMANS, GREEN, and Co. Paternoster Row. NEW ASTRONOMICAL WORKS BY RICHARD In ONE VOLUME, crown 8vo. with 10 Plates Containing the History, Development, and THE SUN; RULER, LIGHT, FIRE, present working of each description of English School for the Industrial and Poorer Classes. By GEORGE C. T. BARTLEY, Examiner Science and Art Department, Author of 'The One Square Mile in the East of London,' &c. This volume contains a history of education for the last two centuries, and of its condition at the present time. It gives an account of all descriptions of schools for the people at present existing, their management and appliances, and the experience which their history affords on all points of practical school working. The work is illustrated with twelve full-page wood engravings and plans, and a copious Index is added. It is believed that it will be found a most useful volume to those who are actively engaged in the extension of education, as giving in a compact form much valuable information not accessible elsewhere. BELL & DALDY, York Street, Covent Garden. and LIFE of the PLANETARY SYSTEM. By RICHARD A. PROCTOR, B.A. DRY AND IMMERSION OBJECTIVE, CHAS. (COMPLETE IN BOX) £5 10 : 0 COLLINS, Microscope Manufacturer, 157 GREAT PORTLAND STREET, W. (Corner of Weymouth Street.) Catalogues of Microscopes, Apparatus, Specimens, &c., per post on application. HENRY CROUCH, 51 London Wall, London, E.C. REVISED PRICE LIST OF OBJECTIVES. The Objectives comprised in the following Lists are guaranteed of the highest class, and especial attention is directed to the new IMMERSION -in., unsurpassed for brilliance and definition, and working through the thickest covering glass. The new Immersion, -in. 140°, with best screw adjustment for thickness of cover, £4 10s. Post-Office Orders to be made payable at Lombard Street, with 6d. extra for postage. FUNGI: EDIBLE, POISONOUS, & MICROSCOPIC. The following Books and Charts will be useful : MUSHROOMS AND TOADSTOOLS : How to Distinguish easily the Difference between Edible and Poisonous Fungi; with two large Sheets, containing Figures of 22 Edible and 31 Poisonous Species, drawn the natural size, and coloured from living specimens. By WORTHINGTON G. SMITH, F.L.S., &c. In sheets, with book, price 6s.; on canvas in cloth case, for pocket, 10s. 6d.; on canvas, with rollers and varnished, for hanging up, 10s. 6d. (A Plain and easy Account of). With especial reference to the Esculent and other Economic Species. By M. C. COOKE. New and revised Edition, with Coloured Plates of 40 Species. Fcp. price 68. A very readable volume upon the lowest and least generally understood race of plants. For popular purposes the book could not have been better done.'-Athenæum. Second edition, price 6s. now ready. MICROSCOPIC FUNGI: A Plain and Easy Guide to the Study of Rust, Smut, Mildew, and Mould. By M. C. COOKE. Over 300 Coloured Figures. To all possessors of a microscope this prettily illustrated book is specially to be commended.'-Field. London: ROBERT HARDWICKE, 192 Piccadilly, W. RUPTURES (By Royal Letters Patent). WHITE'S MOC-MAIN LEVER TRUSS, Perfected and Exhibited in the Great Exhibitions, 1851 & 1862, IS allowed by upwards of 200 Medical Gentlemen to be the most effective invention in the curative treatment of HERNIA. The use of a steel spring, so often hurtful in its effects, is here avoided; a soft bandage being worn round the body, while the requisite resisting power is supplied by the MOC-MAIN PAD AND PATENT LEVER, fitting with so much ease and closeness that it cannot be detected, and may be worn during sleep. A descriptive circular may be had, and the Truss (which cannot fail to fit) forwarded by post, on the circumference of the body (two inches below the hips) being sent to the Manufacturer, Mr. WHITE, 228 Piccadilly, London. Price of a Single Truss, 16s., 21s., 26s. 6d., and 31s. 6d.-Postage, 1s. Post-office Orders to be made payable to JOHN WHITE, Post Office, Piccadilly. ELASTIC STOCKINGS, KNEE-CAPS, &c. For VARICOSE VEINS, and all cases of WEAKNESS and SWELLING of the LEGS, SPRAINS, &c. They are porous, light in texture, and inexpensive, and are drawn on like an ordinary stocking. Price 4s. 6d., 7s. 6d., 10s., and 168. each.-Postage, 6d. Manufacturer, JOHN WHITE, 228 Piccadilly, London, W. SCHOOL OF CHEMISTRY. 20 Great Marlborough Street, Regent Street. FORMERLY DIRECTED BY ARTHUR VACHER, F.C.S. JUNIOR DEMONSTRATOR OF CHEMISTRY IN THE ROYAL SCHOOL OF MINES. The LABORATORIES are furnished with every requisite for the study of the Science. The Hours are from Ten to Five, except on Saturdays, when the Laboratory closes at One. The charge is £5 per Month, or £3 for Half-time. There are no extra expenses, Chemicals, Apparatus, &c., being provided. Students work independently of each other, and can enter at any time. Demy 4to. cloth, price 5s. HALF-HOURS WITH THE STARS. A PLAIN AND EASY GUIDE TO THE KNOWLEDGE OF THE CONSTELLATIONS. Showing in Twelve Maps the Position of the principal Star-Groups night after night throughout the Year. With Introduction, and a separate Explanation of each Map. True for every Year. By RICHARD A. PROCTOR, B.A., F.R.A.S., Author of 'Half-Hours with the Telescope.' Fcp. 8vo. cloth, with Illustrations on Stone and Wood, price 2s. 6d. HALF-HOURS WITH THE TELESCOPE, Being a Popular Guide to the Use of the Telescope as a means of Amusement and Instruction. Adapted to inexpensive Instruments. By R. A. PROCTOR, B.A., F.R.A.S. London ROBERT HARDWICKE, 192 Piccadilly, W. TRANSACTIONS OF THE ROYAL MICROSCOPICAL SOCIETY, AND RECORD OF HISTOLOGICAL RESEARCH. Edited by HENRY LAWSON, M.D., M.R.C.P. EDIN., F.R.M.S., Assistant Physician to St. Mary's Hospital, and Lecturer on Histology in St. Mary's Hospital Medical School. devoted exclusively to the interests of Microscopical Science in the widest and most accurate sense of the term. It contains not only the Proceedings of the Royal Microscopical Society, but also embraces communications from the leading Histologists of Great Britain, the Continent, and America. Besides Original Contributions, The Monthly Microscopical Journal supplies its readers with a comprehensive résumé of the latest Foreign Inquiries, Reviews and Short Notices of the more important works on Histology and the Microscope, Bibliographical Lists of all the recent Microscopical Publications at Home and Abroad, and descriptions of all New and Improved Forms of Microscopes and Microscopic Apparatus; also Correspondence on all Matters of Histological Controversy, and, finally, The Monthly Microscopical Journal gives to the Proceedings of both Metropolitan and Provincial Societies a more prominent position than that which has hitherto been accorded to them; and not only does it contain Reports furnished by the Secre taries of the several Provincial Societies, but it contains also all those Papers of Local Associations which are of real scientific importance. Contributions requiring illustration are accompanied by most carefully drawn plain or coloured Plates, and the text is printed in clear and legible type, thus affording the Microscopist a readable Monthly Record of all that takes place in the branch of science specially interesting to him. Vol. I. of the above, with 392 pp. Letterpress, and 17 whole-page Plates, bound in cloth, price 10s. 6d., containing Articles by With Reports of Microscopical Societies and a Summary of Microscopical Science, from Jan. I to June 1, 1869. Vol. II. of the above, with 342 pp. Letterpress, and 19 whole-page Plates, bound in cloth, price 10s. 6d., containing Articles by THE T. P. BARKAS Dr. W. B. HEREPATH J. HOGG C. T. HUDSON With Reports of Microscopical Societies and a Summary of Microscopical Science from June 1 to Dec. 1, 1869. Vol. III. of the above, with 334 pp. Letterpress, and 18 whole-page Plates, bound in cloth, C. BAILEY C. A. BARRETT Dr. J. S. BOWERBANK J. BROWNING Dr. CARPENTER W. CARRUTHERS C. CUBITT J. B. DANCER price 10s. 6d., containing Articles by With Reports of Microscopical Societies and a Summary of Microscopical Science from Jan. 1 to June 1, 1870. Vol. IV., cloth 10s. 6d. (341 pp. Letterpress, and 14 whole-page Plates), containing Articles by With Reports of Microscopical Societies and a Summary of Microscopical Science, from June 1 to Dec. 1, 1870. London: ROBERT HARDWICKE, 192 Piccadilly, W. AND OTHER SUBJECTS, RECENTLY PUBLISHED. 'WHICH SHOULD JOHN HAVE HELPED ?' A Conversation between Dame Europa and Mrs. Fairplay. With Mark's notion about the £400,000,000 Indemnity. Second Edition. Price 6d. EUROPA'S MENAGERIE AND BRITANNIA'S BULLS. A Zoological Survey of the Political Situation, showing how the Boa-Constrictor strangled the Tiger-Monkeys, and the 'Bulls' had to Keep an Eye on the Bears. Price 6d. THE FAG-END OF THE QUESTION; Or, Questions for the Fag to End. 'Virtus in actione consistit.' Second Edition. Price 6d. 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ON SMALL-POX And its Prevention; including Experiments upon the Lower Animals, and on the Establishment of Government Hospitals for this and some other Contagious Diseases in the Suburbs of London. By EDWARDS CRISP, M.D., M.R.C.S., L.A.C. Price 1s. A CHAPTER IN CRITICISM. Practical Chemists and Therapeutical Critics. Nemo me impune lacessit.' Price 6d. London: ROBERT HARDWICKE, 192 Piccadilly, W. |