THE INTERNATIONAL EXHIBITION AT SOUTH KENSINGTON. By S. J. Mackie, C.E. Plate LXXV. ... ... ... .. ... 284 How FISHES BREATIE. By J. C. Galton, M.A., M.R.C.S., F.L.S. Plate LXXVI. ... ... ... ... ... ... ... 341 MR. CROOKES' NEw Psychic FORCE. By J. P. Earwaker ... ... 356 THE Moss WORLD. By R. Braithwaite, M.D., F.L.S. Plate LXXVII. 366 THEORY OF A NERVOUS ETHER. By Dr. Richardson, F.R.S. ... 379 ON PLEISTOCENE CLIMATE AND THE RELATION OF THE PLEISTOCENE MAMMALIA TO THE GLACIAL PERIOD. By W. Boyd Dawkins, M.A., F.R.S., F.G.S. Plate LXXVIII. ... ... ... ... 388 STAR STREAMS AND STAR SPRAYS. By R. A. Proctor, B.A., F.R.A.S. 398 ULUI UUVERS FOR BINDING w Ir No. 38.16.437. January 1871. Science Review. PUBLISHED QUARTERLY. LONDON: AND ALL BOOKSELLERS.. WALL LIGHTS AND LUSTRES, FOR GAS AND CANDLES. CHANDELIERS IN BRONZE AND ORMOLU. MODERATOR LAM AND LAMPS FOR INDIA. ORNAMENTAL GLASS, ENGLISH AND FOREIGN. ESTABLISHED 1807. Exhaustive of the subject, and worthy of the branch of science it illustrates.'-The Times. «Will be the most complete Flora of Great Britain ever brought out. This great work will find a wherever botanical science is cultivated, and the study of our native plants, with all their fascinating a tions, held dear.'-Athenæum. PUBLISHING IN MONTHLY PARTS, 58. each. SOWERBY'S ENGLISH BOTANY CONTAINING A DESCRIPTION AND LIFE-SIZE DRAWING OF EVERY BRITISH PLA Edited and brought up to the present standard of scientific knowledge by T. BOSWELL SYME, F.L.S., & With Popular Descriptions of the Uses, History, and Traditions of each Plant by Mrs. LANKESTER, Aut Wild Flowers Worth Notice,' The British Ferns,' &c. The Figures by J. E. SOWERBY, JAMES SOWERBY, F.L.S., J. DE C. SOWERBY, F.L.S., and J. W. SALTER, A The Distinctive Characteristics of this Edition are1. A Life-size Drawing of every British Plant, arranged according to the Natural System of De Cando 2. Where necessary, the Plates are accompanied by Illustrations of the structure of the various organs Plant, especially of those structures discovered within the last few years by the use of the Microscope. 3. All the Illustrations are full-coloured instead of half-coloured, and the utmost care is taken to adh closely as possible to Nature. The Prices of the Volumes are— Half morocco. Morocco elegar £ s. d. s. d. £ s. d. Vol. 1. (Seven Parts)... 1 18 0 2 8 6 Vol. 2. ditto 1 18 0 . 2 8 6 Vol. 3. (Eight Parts)... 2 3 0 . 2 7 0 2 18 6 2 13 6 Vol. 6. (Seven Parts).... 1 18 0 . 2 8 6 Vol. 7. ditto ... 1 18 0 ..... 2 8 6 Vol. 8. (Ten Parts).... 2 13 0 . 3 3 6 Vol. 9. (Seven Parts)... 1 18 0 2 86 Vol. 10. ditto 1 18 0 . 2 8 6 Or the Ten Volumes complete to present time, £20 158. in cloth; £22 158. in half morooco: and £26 morocco. The Eleventh Volume will shortly be ready. London : ROBERT HARDWICKE, 192 Piccadilly, W. Popular Science Review Advertiser, January 1871. THE CHEAPEST AND MOST PERFECT ARE TO BE OBTAINED AT C. BAKER'S A SCPERIOR BINOCULAR MICROSCOPE, with Rack Adjustment and Slow Motion 13 100 The IMPROVED EDUCATIONAL MICROSCOPE, with 3 Superior Achromatic Powers and Apparatus, in Mahogany Case 23 3 The IXPROYED STUDENT'S MICROSCOPE, with Concentrie Rotating Stage, having Motions in opposite directions, linch and t-inch Gundlach Objective, with Apparatus in Mahogany Case . . £6 16 6 N.B. This Instrument is as practically useful for the Student as the more e.xpensire. PORTABLE TRAVELLING or SEASIDE MICROSCOPE . . . . . . . . . £? 10 0 APPARATUS AND MATERIALS OF ALL KINDS AT TIIE LOWEST PRICES. The Largest Assortment of Objects in London can be selected from at 1s. each, including a beautiful collection of MULLER'S DIATOMS just received. C. BAKER having accepted the Agency of Mr. Gundlach, of Berlin, is now enabled to supply his celebrated Immersion and other Object Glasses at very Moderate Prices. New Illustrated Catalogues free by post. Established 1766. CATALOGUES FREE BY POST. ESTABLISHED 1763. MAGIC LANTERNS AND DISSOLVING VIEWS. The Cheapest and Best House in London for Phantasmagoria Lanterns and Dissolving Vieus is C. BAKER'S, 244 & 245 HIGH HOLBORN. A first-class Set of DISSOLVING VIEW APPARATUS. complete, that will all a disc 10 feet in diameter, e6 10s. MAGIC LANTERNS, with 8) Inch Lenses, giving a disc of 10 feet . . L2 10s. od. DITTO with 3 inch ditto d itto . . 21 178. 6d. Lists by post free on application. CATALOGUES FREE BY POST. ESTABLISHED 1765. SECOND-HAND MICROSCOPES, TELESCOPES, RACE, FIELD, AND OPERA GLASSES, CAMERAS AND LENSES, THEODOLITES, LEVELS, AND EVERY DESCRIPTION OF INSTRUMENTS. WILLIAM LAWLEY’S, 178 FARRINGDON STREET, CITY. Separate Catalogues forwarded on receipt of Three Stamps each. ENLARGED ILLUSTRATED SURGICAL CATALOGUE, SIX STAMPS. N.B.-GOOD INSTRUMENTS PURCHASED OR TAKEN IN EXCHANGE. Now ready, a new Edition, with the Chemical elements entirely re-written, By M. C. COOKE. London: ROBERT HARDWICKE, 192 PICCADILLY, W. Feap. 8vo. price 28. 6d. plain, 48. coloured. HALF-HOURS WITH THE MICROSCOPE. By EDWIN LANKESTER, M.D. with full Description of the various Parts of the Instrument. PART I. NOW READY. In course of publication, in Four Parts, to form Two Volumes demy 850. with a Plate in Chromolithography, and 300 Illustrations on Wood, price 5s. each Part to Sul'scribers ; 7s. 6d. to Non-Subscribers. A TREATISE ON LOCALISED ELECTRISATION, AND ITS APPLICATION TO PATHOLOGY AND THERAPEUTICS. By Dr. G. B. DUCHENNE. Translated from the Third Edition of the Original, now passing through the press, by HERBERT TIBBITTS, M.D., L.R.C.P., Lond. Medical Superintendent of the National Hospital for the Paralysed and Epileptic. WITH NOTES AND ADDITIONS BY THE TRANSLATOR. CEOLOGY-ELEMENTARY COL- DVERYBODY'S PRINTING PRESS. U LECTIONS to Illustrate the modern V PRINTING PRESSES, print 8 by 5in, works on Geology, and facilitate the interesting. 11s.-R. Fairbairn & Co., 27 East Passage, study of Mineralogy and Geology, can be had Long Lane, Smithfield, London. Erery des at 2, 5, 10, 20, 50, to 1,000 Guineas; also scription of type and materials for amateurs, single specimens of Minerals, Rocks, Fossils, ! Particulars for stamped envelope. and Recent Shells, Geological Maps, Hammers, Models of Gold Nuggets, all the recent Pub In One Volume, post 8vo. price 5s. cloth, lications, &c. of J. TENNANT, Mineralogist to , THE FORCES OF THE UNIVERSE. Her Majesty, 149 Strand, W.C. By GEORGE BERWICK, M.D. London: LONGMANS, GREEN, and Co. Practical instruction is given in Mineralogy Paternoster Row. and Geology, illustrated by numerous specimens, by Mr. TENNANT, F.G.S., at 149 Strand. THE PREPARATION and MOUNT 1 ING of MICROSCOPIC OBJECTS.By THOMAS DAVIES. Fcp. cloth, price 2s.6d. This manual comprises all the most approved me. OFFICE for Patents of Inventions ! thods of mounting, together with the result of the Anthor's experience and that of many of his friends in l and for the Registration of Designs. every department of Microscopic Manipulation : and BREWER & JENSEN, Consulting Engineers as it is intended to assist the beginner as well as the and Patent Agents, continue to transact every advanced student, the very rudiments of the art have not been omitted. description of business connected with Patents Nothing is more difficult to those who handle a for Inventions in the United Kingdom and all microscope for the first time than to get their objects Foreign Countries, at most moderate charges. in a fit state for exhibition and preparation. This little book is clear, full, and practical ; and it soon Intending Patentees and others should read the reveals to the careful student the valuable fact that a pamphlet, the ‘Inventor's Manual,' gratis on great deal may be done with very simple appliances application, or by letter, Britisli, Colonial, and We recommend it to young microscopists as a book which supplies a fclt deficiency,'-GUARDIAN. Foreign Patent Agency, 89 Chancery Lane, London, W.C. Established 1814. London: ROBERT HARDWICKE, |