440 THE ZOOLOGIST. 



NOTICES OF NEW BOOKS. 



Zoology of the Invertebrata : a Text-book for Students. By 

 Arthur E. Shipley, M.A. 8vo, pp. viii & 458. London : 

 Adam & Charles Black. 1893. 



Thanks mainly to the rise of the Cambridge school of 

 biologists, English students are now able to obtain suitable 

 textbooks written with a knowledge of their needs, and doing 

 justice to English workers. Mr. Shipley's new book comes well 

 in this category, and supplies a distinct want of students for 

 honours in elementary zoology, or a pass at degree examinations. 

 He has wisely omitted detailed descriptions of those selected 

 types that are to be found in more elementary text-books, and 

 has chosen other types for full description, thus materially aiding 

 the student. His definitions are good and full, his descriptions 

 clear and useful, his tables well arranged. Few omissions of conse- 

 quence are noteworthy, remarkable exceptions being the Eotifers, 

 whose morphological importance is immense, and Phoronis. Here 

 and there we have noted slight blemishes, the citation of which 

 in a review would give them a disproportionate and undue promi- 

 nence. Rather more serious is the description of the " nauplius 

 eye" as a "simple eye" when its triple nature is unmistakeable, 

 and the omission to note the presence of the " entosternite" in 

 Crustacea, as first shown by Prof. Lankester. The reviewer is 

 pleased to note the acceptance of his views on the importance of 

 anal respiration in this group. Indeed in every respect the work 

 is well up to date. 



The get up of the book is very good ; binding, type, and 

 illustrations are equally creditable to the publishers. But the 

 paper is far too stout : the * Century ' magazine is a standing 

 proof that paper scarcely half as thick is sufficient to do justice 

 to printing and woodcuts ; and bulk and weight are serious dis- 

 advantages in a text-book intended and surely destined for 

 frequent use. We regret to see the un-English spelling " develope- 

 ment " throughout the book — a spelling which somehow brings 

 to our mind a suggestion of Gretna Green. 



M. H. 





