... MR. CROOKES' NEW PSYCHIC FORCE. By J. P. Earwaker THE MOSS WORLD. By R. Braithwaite, M.D., F.L.S. Plate LXXVII. 366 ... ON PLEISTOCENE CLIMATE AND THE RELATION OF THE PLEISTOCENE OSLER'S CRYSTAL GLASS CHANDELIEF WALL LIGHTS AND LUSTRES, FOR GAS AND CANDLES. CHANDELIERS IN BRONZE AND ORMOLU. MODERATOR LAM AND LAMPS FOR INDIA. TABLE GLASS OF ALL KINDS. ORNAMENTAL GLASS, ENGLISH AND FOREIGN. Mess, Export, and Furnishing Orders promptly executed. All Articles marked in Plain figures. LONDON: SHOW ROOMS, 45 OXFORD STREET, W. BIRMINGHAM:-MANUFACTORY AND SHOW ROOMS-BROAD STR 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 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 The Distinctive Characteristics of this Edition are 1. 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. Vol. 1. (Seven Parts). The Prices of the Volumes are— Bound cloth. £ s. d. 1 18 0 1 18 0 220 Vol. 3. (Eight Parts). 230 270 Vol. 4. (Nine Parts) 2 8 0 2 12 0 Vol. 5. (Eight Parts). 2 3 0 Vol. 7. Vol. 6. (Seven Parts). 1 18 0 2 2 0 1 18 0 2 2 0 Vol. 8. (Ten Parts).. 2 13 0 Vol. 9. (Seven Parts).. 1 18 0 2 17 0 Or the Ten Volumes complete to present time, £20 158. in cloth; £22 15s. in half morocco; and £26 morocco. The Eleventh Volume will shortly be ready. London: ROBERT HARDWICKE, 192 Piccadilly, W. ACHROMATIC MICROSCOPES, APPARATUS, AND MATERIALS. THE CHEAPEST AND MOST PERFECT ARE TO BE OBTAINED AT 244 & 245 HIGH HOLBORN. A SUPERIOR BINOCULAR MICROSCOPE, with Rack Adjustment and Slow Motion The IMPROVED EDUCATIONAL MICROSCOPE, with 3 Superior Achromatic Powers and Apparatus, in Mahogany Case The IMPROVED STUDENT'S MICROSCOPE, with Concentrie Rotating Stage, having Motions in opposite directions, a 1-inch and -inch Gundlach Objective, with Apparatus in Mahogany Case N.B.-This Instrument is as practically useful for the Student as the more expensive. PORTABLE TRAVELLING or SEASIDE MICROSCOPE . £5 10 0 23 3 0 26 16 6 £2 10 0 APPARATUS AND MATERIALS OF ALL KINDS AT THE LOWEST PRICES. The Largest Assortment of Objects in London can be selected from at 1s. each, including a beautiful collection of MÜLLER'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. MAGIC LANTERNS AND DISSOLVING VIEWS. The Cheapest and Best House in London for Phantasmagoria Lanterns and Dissolving Views is A first-class Set of DISSOLVING VIEW APPARATUS, complete, that will fill a disc 10 feet DITTO with 3 inch ditto ditto A large assortment of smaller sizes, with slides, from 68. 6d. £2 10s. Gd. Also a very extensive collection of BEAUTIFULLY PAINTED SLIDES, from 1s. 6d. each. Lists by post free on application. A Collection of Dissolving Views and Lanterns specially kept for Hire at reduced prices. SECOND-HAND MICROSCOPES, TELESCOPES, CAMERAS AND LENSES, MAGIC and DISSOLVING VIEW LANTERNS and SLIDES, AND EVERY DESCRIPTION OF SURGICAL, MATHEMATICAL, PHILOSOPHICAL, AND OTHER INSTRUMENTS. WILLIAM LAWLEY'S, 78 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. A Now ready, a new Edition, with the Chemical elements entirely re-written, OF STRUCTURAL By M. C. COOKE. BOTANY. WITH UPWARDS OF 200 WOODCUTS, PRICE ONE SHILLING. Feap. 8vo. price 2s. 6d. plain, 48. coloured. HALF-HOURS WITH THE MICROSCOPE. By EDWIN LANKESTER, M.D. Illustrated by 250 Drawings from Nature by TUFFEN WEST. New Edition, much enlarged, with full Description of the various Parts of the Instrument. London: ROBERT HARDWICKE, 192 PICCADILLY, W. PART I. NOW READY. In course of publication, in Four Parts, to form Two Volumes demy 8vo. with a Plate in Chromolithography, and 300 Illustrations on Wood, price 5s. each Part to Subscribers; 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 BY THE TRANSLATOR. GEOLOGY. ELEMENTARY COL- EVERYBODY'S PRINTING PRESS. LECTIONS to Illustrate the modern works on Geology, and facilitate the interesting study of Mineralogy and Geology, can be had at 2, 5, 10, 20, 50, to 1,000 Guineas; also single specimens of Minerals, Rocks, Fossils, and Recent Shells, Geological Maps, Hammers, Models of Gold Nuggets, all the recent Pub PRESSES, print 8 by 5in, 11s.-R. Fairbairn & Co., 27 East Passage, Long Lane, Smithfield, London. Every description of type and materials for amateurs. Particulars for stamped envelope. 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. Practical instruction is given in Mineralogy and Geology, illustrated by numerous speci By GEORGE BERWICK, M.D. London: LONGMANS, GREEN, and CO. Paternoster Row. mens, by Mr. TENNANT, F.G.S., at 149 Strand. THE PREPARATION and MOUNT OFFICE for Patents of Inventions and for the Registration of Designs.BREWER & JENSEN, Consulting Engineers and Patent Agents, continue to transact every description of business connected with Patents for Inventions in the United Kingdom and all Foreign Countries, at most moderate charges. Intending Patentees and others should read the pamphlet, the Inventor's Manual,' gratis on application, or by letter, British, Colonial, and Foreign Patent Agency, 89 Chancery Lane, London, W.C. Established 1844. ING of MICROSCOPIC OBJECTS.By THOMAS DAVIES. Fep. cloth, price 2s. 6d. This manual comprises all the most approved methods of mounting, together with the result of the Author's experience and that of many of his friends in every department of Microscopic Manipulation; and as it is intended to assist the beginner as well as the advanced student, the very rudiments of the art have not been omitted. 'Nothing is more difficult to those who handle s microscope for the first time than to get their objects in a fit state for exhibition and preparation. This little book is clear, full, and practical; and it soon reveals to the careful student the valuable fact that a great deal may be done with very simple appliances. We recommend it to young microscopists as a book which supplies a felt deficiency.'-GUARDIAN. London: ROBERT HARDWICKE, |