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recanted of his sin in the subject of man's antiquity, 

 and seems to think 10,000 years is enough for him. 

 Mr. Brown's book comes in well as an antidote. 

 Practically, it is the continued result of the author's 

 papers on this subject for some years past, con- 

 tributed to various learned societies. It is crowded 

 with evidences of wide, as well as the original 

 observation, of large and extensive reading, and of 

 a thorough familiarity with the subject in all its 

 multitudinous departments. It is consequently a 

 valuable manual for students. 



Manual of Zoology, by Professor H. A. Nicholson. 

 Seventh edition. (Edinburgh and London : W. Black- 

 wood & Sons.) No living writer has done more to 

 introduce students to zoology than Professor Nicholson. 

 His elementary and advanced text-books on that 

 subject are well known, but the present volume 

 is fuller and completer, extending to nearly 1000 

 pages, and containing 555 illustrations. The fact 

 that the present is the seventh edition shows the 

 position the work has taken, and renders criticism un- 

 necessary. But it is important to note that the author 

 has rewritten and enlarged his work, so as to make it 

 include the newest discoveries as far as possible. 



A Sketch of the Geological History of the Earth, by 

 Professor Ed. Hull, F.R.S.'(London : C.W. Deacon & 

 Co.). This is an admirable, useful, and trustworthy 

 digest of practical geology, dealing with the different 

 geological periods in succession, and tracing the dis- 

 tribution of their strata throughout the world. In 

 addition, the fauna and flora, volcanic phenomena, 

 etc., of each formation are noted. The work will 

 prove very useful for brief reference, and Professor 

 Hull's name is sufficient to make it a successful little 

 book. 



Flora of Sussex, by the Rev. F. H. Arnold, LL.B. 

 (London : Hamilton & Adams). This well got-up 

 little book gives a list of all the flowering plants and 

 ferns found in Sussex, as well as the localities of rarer 

 species. The author is a botanist of high standing, 

 whose name has been well known to readers of 

 Science-Gossip for fifteen years as one of our best 

 contributors. It has evidently been a labour of love 

 to Mr. Arnold. It is accompanied by a map of the 

 county, with the districts marked, and contains an 

 introduction, description of the seven botanical dis- 

 tricts into which he divides Sussex, a history of Sussex 

 botany, bibliography, etc. The whole work is 

 remarkable for carefulness and accuracy, and it will 

 undoubtedly take a good place in our botanical 

 literature. 



Sixth Annual Report (1S84-1885) of the U. S. A. 

 Geological Survey (Washington : Gov. Offices). It 

 is a genuine pleasure to an English geologist to receive 

 these splendidly got-up volumes. Those of our own 

 Geo. Survey are never sent out to English scientific 

 journals, perhaps because of the expense of postage. 

 The present vol. is of high scientific value ; the paper 

 by Professor Lesquereux, " On the Flora of the Lar- 



amie Group" (illustrated by 65 double plates of fossil 

 plants), being alone sufficient to give it a permanent 

 value. The greater part of the vol. is taken up with 

 descriptions of the physical history and geography of 

 the Upper Mississippi Valley. 



Introductory Text-Book to Physical Geography, by the 

 late Dr. D. Page. Revised and enlarged by Professor 

 Charles Lapworth (Edinburgh: W. Blackwood). 

 We are pleased to see the re-issue of this work, or 

 rather, the complete revision and alteration, for Dr. 

 Page's was by no means a trustworthy text-book. 

 No man could have been selected for the work of 

 revision who would have done better than Dr. Lap- 

 worth. It is now a model elementary text-book of 

 the subject. 



The Liver-Fhike and the Rot in Sheep, by Ed. 

 Halse (London : Edward Stanford). This is a prize- 

 essay, setting forth in such a clear and easily under- 

 stood manner the whole history of the subject, that 

 we do not wonder Mr. Halse (another old contributor) 

 took the prize for it at the Agricultural College, Tam- 

 worth. It is rather a full and complete summary of 

 the subject than the results of original investigation, 

 although there are not lacking evidences of the latter. 

 The folding plate includes 17 illustrations of the 

 various stages in the life history of the fluke- worm. 



Factors in Life, by Professor H. G. Seely, F.R.S. 

 (London; S. P. C. K.). This small but attractively 

 got-up book contains three lectures on Health, Food, 

 and Education, by one of the best and most original 

 lecturers of the day. The Fungus- Hunter's Guide, 

 by W. Delisle Hay (London : Swan Sonnenschein & 

 Co.). Mr. Hay is making running with his fungus 

 books, and there is a suspicion they are getting too 

 numerous. But the present little book is very handy 

 for the pocket, and the " keys " by which to determine 

 the characters of the different genera and species of 

 funguses are clearly made out. Interleaved pages for 

 memoranda are inserted. The Student's Handbook to 

 the Microscope, by a Quekett Club man (London : 

 Roper & Drowley). The " Club-man " is Mr. F. 

 Charters White, one of the most "Clubbable " of men 

 — a devotee to the microscope, so that nobody could 

 have brought out a brochure like this except himself. 

 It is the very book the young beginner wants. Seven, 

 the Sacred Number, by Richard Samuell (London : 

 Kegan Paul). This is a work "no fellow" can 

 understand, except the author. Chemistry and Heat, 

 by R. G. Durrant (London : Rivingtons). A handy 

 little book for working reference. Lunar Science, by 

 the Rev. T. Harley (London : Swan Sonnenschein & 

 Co.). A well-written, brief, and artistically got-up 

 volume, which condenses a wonderful amount of 

 information concerning the moon in a short space. 

 Science Lectures at Newcastle (London : Walter Scott). 

 Seven capitally reported and highly readable lectures 

 by G. F. Romanes, H. N. Moseley, Litton Forbes, 



E. A. Parkyn, H. Nettleship, Andrew Wilson, and 



F. H. Carpenter. All About Mnemonics, by A. E. 



