REVIEWS 191 



THE EUROPEAN SPHAGNACE^E (AFTER WARNSTORF). By E. 

 Charles Horrell, F.L.S. Journ. Bot., 1900, pp. 110-122, 161-167, 

 215-224. Is a monograph of the genus in Europe, as based on the 

 work of Dr. Warnstorf. It is preceded by a good bibliography of 

 the genus since 1880. 



REVIEWS. 



A TREATISE ON ZOOLOGY. Edited by E. Ray Lankester, M.A., 

 LL.D., F.R.S. Part III. THE ECHINODERMA. By F. A. Bather, 

 M.A. Assisted by J. W. Gregory, D.Sc., and E. S. Goodrich, M.A. 

 (London: Adam and Charles Black, 1900.) 



Although the book under consideration forms the third part of 

 the treatise, yet it is the first volume issued of what will undoubt- 

 edly prove to be one of the most important works on Zoology that 

 has ever been published. It may be termed the " Oxford Natural 

 History," for the distinguished editor and the various well-known 

 authors of the series are graduates of that illustrious university. 



The general aim of the treatise is, we are told, "to give a 

 systematic exposition of the characters of the classes and orders of 

 the animal kingdom, with a citation in due place of the families and 

 chief genera included in the groups discussed." And "the main 

 purpose of the Editor has been that the work shall be an indepen- 

 dent and trustworthy presentation, by means of the systematic 

 survey or taxonomic method, of the main facts of Zoology, or, to 

 speak more precisely, of Animal Morphography." 



In the volume before us, written chiefly by Mr. Bather, of the 

 Natural History Museum, a recognised specialist on the Echino- 

 derma, the Editor's ideal is fully realised. The volume presents us 

 with a comprehensive and scientific account of the general features 

 of the Phylum, and of the structure and classification of its various 

 sub-divisions ; and the illustrations, which are numerous and ex- 

 cellent, are chiefly original. 



The treatise is to be completed in ten parts, and among the 

 other authors concerned in their production are Professors Poulton, 

 Weldon, Benham, and Minchin ; and Messrs. G. C. Bourne and 

 G. H. Fowler. 



A BOOK OF WHALES. By F. E. Beddard, M.A., F.R.S. With 

 forty illustrations by W. Sidney Berridge. (London : John Murray, 

 1900.) 



Mr. Beddard's " Book of Whales " forms a new volume of Mr. 

 Murray's Progressive Science Series a series which is to comprise 

 works on every branch of science. 



The book presents us with a general work on the Cetacea, which 



