REVIEWS. 127 



Synopsis of the Fresh-Water Rhizopods : A Condensed 



Account of the Genera and Species, founded upon Professor Joseph Leidy's 

 " Fresh-Water Rhizopods of North America." Compiled by Romyn 

 Hitchcock, F.R.M.S. Crown 8vo ; pp. viii. — 58. (Washington, U.S.A.: 

 Romyn Hitchcock. 1881.) 



This is a synopsis of Professor Leidy's grand work on the Fresh-Water 

 Rhizopods, gwing the general characteristics of the Rhizopods, and a brief 

 description of the Genera and Species. 



Clinical Therapeutics : Lectures in Practical Medicine, 



delivered in the Hospital St. Antoine, Paris, by Prof. Dujurdin-Beaumetz. 

 Translated by E. P. Hurd, M.D. Royal 8vo ; pp. xvii.— 491 (Detroit, 

 Mich., U.S.A. : Geo. S. Davis. 1885.) Price $4. 



The eminence of the author of this important work as a teacher of 

 practical therapeutics, is so well known that the book has already run through 

 four editions in French, and has been translated into the Spanish, Italian, 

 Greek, and Russian languages; it is written in an interesting style, and 

 discusses practically and thoroughly the most modern methods of treatment. 

 There is a full index. 



Lewis's Pocket Medical Vocabulary. i6mo, pp. 215. 



(London: W. K. Lewis. 1886.) Price 3s. 6d. 



A most useful pocket companion for the medical student. The principal 

 words are printed in heavy black letters (Clarendon), thus making it most easy 

 and convenient for reference ; in many cases, the Greek root is given. 



The Principles of Political Economy. By Simon New- 

 comb, Ph.D., LL.D. 8vo. pp. xvi.— 548. (New York: Harper Bros. 

 1886.) 



This work is intended to embody an exposition of those principles of 

 economic science which must be mastered by every one who would form an 

 intelligent judgment of the causes which influence the public well-being. It is 

 divided into the following sections : — L The Logical Basis and Method of 

 Economic Science. H. A description of the Social Organism. HL The 

 Laws of Supply and Demand. IV. The Societary Circulation, V. The 

 Application of Economic Science. 



A Geographical Text Book for Beginners. By William 



B. Irvine. 4to, pp. 32. (London : Relfe Bros.) Price is. 



A capital little book, containing much information in small space. There 

 are eleven clearly printed and nicely coloured maps. 



The Lake Dwellings of Ireland ; or, Ancient Lacustrine 



Habitations of Erin, commonly called Crannogs. By W. G. Wood-Martin, 

 M.R.I. A., F.R.H.A.A.L, Lieut. -Colonel 8th Brigade North Irish Division 

 R.A. ; royal 8vo, pp. xxii. — 268. (Dublin : Hodges, Figgis, and Co. 

 London : Longmans, Green, and Co. 1886.) Price 25s. 



Any contribution to our knowledge of the Lacustrine Dwellers is welcome, 

 specially because they formed a link between prehistoric and the present time, 

 and also because our more accurate information respecting the Dwellings 

 themselves is of such recent acquirement. 



But the work before us has additional claims upon us : it gives us informa- 



