BROWNING'S NEW LARGE AUTOMATIC ELECTRIC LAMP. In this Lamp both carbons are removed by the electricity of the battery employed (without the aid of clockwork); the light remains uniform in height, and more steady in action than any of the expensive regulators previously introduced. Any number from 20 to 50 quart Grove's Cells, or 2 quart Bunsen's, may be used with this Lamp. Price £8 8s. Illustrated Circular for Stamped Envelope. JOHN BROWNING, OPTICAL AND PHYSICAL INSTRUMENT MAKER TO HER THE ROYAL SOCIETY, THE ROYAL OBSERVATORY, &c., &c., 111, MINORIES, LONDON, E. Established 100 Years. GEOLOGY. ELEMENTARY COLLECTIONS 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 1000 guineas; also single specimens of Minerals, Rocks, Fossils, and Recent Shells, Geological Maps, Hammers, Models of Gold Nuggets, all the recent publications, &c., of J. TENNANT, Mineralogist to Her Majesty, 149, Strand, London, W.C. PRACTICAL INSTRUCTION is given in MINERALOGY and GEOLOGY, by Mr. TENNANT, F.R.G.S., at 149, Strand. Models, Diagrams, &c. Illustrated by numerous Specimens. Now Publishing, in Monthly Parts, price 2s. 6d. each, Third Edition. Edited by J. W. GRIFFITH, M.D., &c., assisted by the JOHN VAN VOORST, 1, Paternoster Row. Price £1. 28. 6d. plain; £1. 88. coloured by hand. EVERY KNOWN FERN. SYNOPSIS FILICUM; including OSMUNDACEE, SCHIZEACEE, MARATTIACEE, and OPHIOGLOSSACEE, Accompanied by Figures representing the essential characteristics of each Genus. By the late Sir W. J. HOOKER, K.H., and JOHN GILBERT BAKER, F.L.S., Assistant Curator of the Kew Gardens. This is the cheapest and most complete book which describes all the Ferns throughout the world. So full and clear are its details that anybody who will take the trouble to master a few botanical terms can with certainty name any fern he may meet with in any part of the world, whether growing wild or under cultivation in garden or hothouse. "Sir W. Hooker began collecting a Fern Herbarium in 1811. For this study this enthusiastic and illustrious botanist had all his life extraordinary advantages. The positions he occupied-first Professor of Botany at Glasgow, and then as Director of the Kew Gardens-were made the most of, not merely by amiability of character which made his pupils and friends willing assistants, but at Kew he possessed the finest herbarium of ferns, and, thanks to Mr. John Smith, the best collection of ferns in cultivation in the world. The names of travellers and botanists to whom he acknowledges obligations fill a page and a half of his preface. When Sir W. Hooker died, his son, Dr. Hooker, requested Mr. J. G. Baker to carry it out, possessing as he did full access to the specimens, and being supplied with Sir William's notes and annotations. The result is the publication of such a work as the author designed-a vade mecum for the students, cultivators, and collectors of ferns."-Athenæum. London: ROBERT HARDWICKE, 192, PICCADILLY, W. MUSHROOMS AND TOADSTOOLS: How to distinguish easily the Difference between Edible and Poisonous Fungi; with two large sheets, containing figures of twenty-nine Edible and thirty-one Poisonous Species, drawn the natural size, and coloured from living specimens. By WORTHINGTON G. SMITH, F.L.S., &c. In sheets, with book, price 68.; on canvas in cloth case, for pocket, 108. 6d.; on canvas, with rollers and varnished, for hanging up, 10s. 6d. "Before the appearance of Mr. Smith's book scarcely more than three or four kinds were freely accepted by prudent cooks. We have now before us the list of esculent mushrooms recommended, nay, warranted by Mr. Smith, of all of which he and his friends have freely partaken, with the most satisfactory results, and many of which are far more delicious in flavour and toothsome in substance than the meadow and horse mushrooms, generally known as the mushrooms of commerce."-Pall Mall Gazette. (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. Fcap., price 68. “A very reliable volume upon the lowest and least generally understood race of plants. For popular purposes the book could not have been better done."-Athenæum. MICROSCOPIC FUNGI. (Rust, Smut, Mildew, and Mould.) An Introduction to the Study of Microscopic Fungi. By M. C. COOKE, Author of the British Fungi.' Fcap. 8vo, nearly 300 coloured Figures. Second Edition, with Appendix of New Species, price 68. "There is a thoroughness about Mr. Cooke's writings which always makes his communications welcome. He is not content to gather information from cyclopædias, classify and adapt, and then give a new form to the thoughts of others. On the contrary, he strikes out a new course of study, and after a laborious course of analysis, produces an entirely original work, one on which nothing of the kind had been before attempted."- Wesleyan Times. London: ROBERT HARDWICKE, 192, PICCADILLY, W. THE MONTHLY MICROSCOPICAL JOURNAL. No. XXXV., for NOVEMBER, 1871, price 1s. 6d., contains:— AN INCIDENT IN THE LIFE OF A CHELIFER. By S. J. McIntire, F.R.M.S. ON THE FORM AND USE OF THE FACIAL ARCHES. By W. K. Parker, F.R.S., President R.M.S. ANOTHER HINT ON SELECTING AND MOUNTING DIATOMS. Communicated by Capt. Fred. H. Lang, President of the Reading Microscopical Society. THE MONAD'S PLACE IN NATURE. By Metcalfe Johnson, M.R.C.S. E., Lancaster. MAPPING WITH THE MICRO-SPECTROSCOPE, WITH THE BRIGHT-LINE MICROMETER. By H. G. Bridge. SOME REMARKS ON A "NOTE ON THE RESOLUTION OF AMPHIPLEURA PELLUCIDA BY A TOLLES' IMMERSION (TH. By ASSISTANT-SURGEON J. J. WOODWARD, U. S. ARMY." By Edwin Bicknell. INFUSORIAL CIRCUIT OF GENERATIONS. By Theod. C. Hilgard. WITH REVIEWS OF BOOKS AND SUMMARY OF MICROSCOPICAL PROGRESS AT HOME AND ABROAD. Now ready, in Cloth, price 10s. 6d., Vol. VI. of the above, 308 pp. and 19 whole-page plates; also THE POPULAR SCIENCE REVIEW, How FISHES BREATHE. By J. C. Galton, M.A., F.L.S. THE MOSS WORLD. By R. Braithwaite, M.D., F.L.S. THEORY OF A NERVOUS ETHER. Dr. Richardson, M.A., M.D., F.R.S. ON PLEISTOCENE CLIMATE AND THE RELATION OF THE PLEISTOCENE MAMMALIA STAR STREAMS AND STAR SPRAYS. By R. A. Proctor, B.A., F.R.A.S. REVIEWS OF BOOKS, SUMMARY OF PROGRESS IN EVERY DEPARTMENT OF SCIENCE. Vol. X. Now Ready, upwards of 450 pp. and 13 whole-page Plates, in Cloth, 128. Complete Sets, in Numbers, £5. 08. 6d. 10 Vols., Cloth, £6. 38. Half Morocco, £7. 138. London: ROBERT HARDWICKE, 192, PICCADILLY, W. A CONTENTS OF No. XXXVI. ART. PAGE I. NOTES ON PROF. JAMES CLARK'S FLAGELLATE INFUSORIA, WITH II. NOTE ACCOMPANYING THREE PHOTOGRAPHS of DegeeriA DOMESTICA, NOTE ON THE ABOVE. By F. H. Wenham 261 266 267 III. ON BOG MOSSES. By R. Braithwaite, M.D., F.L.S. 268 IV. AN INSTRUMENT FOR MICRO-RULING ON GLASS AND STEEL. By J. F. Stanistreet .. 274 V. ON THE CONJUGATION OF AMEBA. By J. G. Tatem, Esq. 275 VI. CRYSTALLIZATION OF METALS BY ELECTRICITY UNDER THE MICRO- 277 278 VII. INFUSORIAL CIRCUIT OF GENERATIONS. By Theod. C. Hilgard VIII. ON THE CONNECTION OF NERVES AND CHROMOBLASTS. By M. 285 The MONTHLY MICROSCOPICAL JOURNAL is furnished free to Members of the Royal Microscopical Society. Non-Members can get it from any bookseller, price 18. 6d. per month. Contributors must write their Names and Addresses on the first page of MS. All Communications to be addressed to the Editor, 192, Piccadilly. a New Works issued by ROBERT HARDWICKE. CONCERNING VACCINATION: A Critical Exposition of the Subject for non-Professional Readers. THE DENTAL PROFESSION: By GEORGE A Letter to the Editor of a London Newspaper. By a Dental Surgeon. Price 18. RATIONAL CHRISTIANITY: A Creed. Crown 8vo. Price 18. TEXT-BOOK OF SKIN DISEASES. By Dr. ISIDOR NEUMANN, Lecturer on Skin Diseases in the Imperial University of Vienna. Translated from the Second German Edition, by special permission of the Author. By Alfred Pullar, M.D. and C.M., Fellow of the Royal Med. Chi. Society; Physician to the East London Hospital for Children. Translation reserved by the Author. Sixty woodcuts of recent Microscopic Investigations. Royal 8vo. Price 12s. 6d. THREE LECTURES ON THE PRESERVATION OF SIGHT. (Illustrated.) By DAVID SMITH, M.D., M.R.C.S., and Extra Academical A GUIDE TO THE INSTITUTIONS AND CHARITIES SPIRITUALISM: A Treatise in which it is shown that the so-called Spiritual Manifestations may, by careful study, be traced to natural causes. By Prof. G. G. ZERFFI, Ph. Dr., Lecturer Cloth. With Coloured Diagram. Price on Art, South Kensington. Crown 8vo. THE SIEGE OF LONDON: Being the Reminiscences of Another Volunteer. Price 6d. A FOUR DAYS' RAMBLE IN SURREY AND WEST SUSSEX, including a brief account of Blackdown and the Highlands of Surrey. By J. R. SHEEN. Price 6d. THE FOOT AND ITS COVERING, WITH CAMPER'S London: ROBERT HARDWICKE, 192, PICCADILLY, W. [Shortly. THE MONTHLY MICROSCOPICAL JOURNAL. DECEMBER 1, 1871. I.-Notes on Prof. James Clark's Flagellate Infusoria, with description of New Species. By W. SAVILLE KENT, F.Z.S., F.R.M.S., British Museum. (Read before the ROYAL MICROSCOPICAL SOCIETY, Nov. 1, 1871.) THE following is a brief synopsis of certain genera and species of Flagellate Infusoria described by Professor James Clark, of Pennsylvania, U.S., in the Memoirs of the Boston Society of Natural History,' vol. i., 1866, with the diagnostic characters of new species interpolated and those of other previously-described ones EXPLANATION OF PLATE CV. FIG. 1.-A colony of Codosiga echinata, magnified 500 diameters. 2.-A single zooid, detached, magnified 1500 diameters. 3.-A colony of Codosiga umbellata, magnified 400 diameters. 5.-Another colony of the same species, exhibiting a bi-tripartite ramifica- 6.-A colony of Codosiga pulcherrima, magnified 500 diameters. 7.-Another colony of the same species consisting of only two individuals. 8.-Salpingaca marina (after Jas. Ĉlk.). 9.-Salpingoca gracilis (after Jas. Clk.). 10, 11. Two solitary and shorter individuals of the same species as observed by the author, magnified 1200 diameters. 12.-A colony of still shorter individuals, in which the elongate, hollow peduncle is entirely suppressed. Magnified 1200 diameters. 13.-A variety of Salpingoca amphoridium, attached by a short pedicle, and in this character approaching the stalked species S. marina. Magnified 1200 diameters. 14.-An ordinary sessile individual of the same species, magnified 1200 diameters. 15. Two zooids of Bicosaca lacustris in the condition of full extension, magnified 1200 diameters. 16.-A single individual of the same species, further enlarged, with the zooid retracted within its lorica, and exhibiting the spiral manner in which the flagellum is then disposed. 17.-Two zooids of Bicosaca socialis, magnified 800 diameters. 18.-Bicosaca inclinata, magnified 600 diameters. 19.-Two compound colonies of Anthophysa solitaria, magnified 400 diameters. 20.-Two zooids of the same species, derived from the longitudinal fission of a single individual, and still connected with one another at their base. Magnified 1500 diameters. 21.-A compound colony of Anthophysa laxa, magnified 900 diameters. *Reprinted in the 'Annals and Magazine of Natural History,' 4th ser., vol. i., 1868. VOL. VI. U |