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NOTICES OF NEW BOOKS. 



A Treatise on Zoology. Edited by E. Ray Lankester, M.A., 

 LL.D., F.R.S., &c. Part I. Introduction and Protozoa. 

 Sec. Fascic. by J. B. Farmer, D.Sc, J. J. Lister, M.A., 

 E. A. Minchin, M.A., and S. J. Hickson, F.R.S. Adam 

 & Charles Black. 



The term " serious students " is probably exact, but too 

 suggestive ; we may propose " real students," and all such will 

 appreciate another volume of this advanced series. It is not 

 addressed to the collector of natural history curios, nor specially 

 to the bionomical observers who are the salt of the pages of this 

 Journal ; but it contributes to the faith and evidence for a quali- 

 fied biologist. It is one of the strongest volumes yet issued, and 

 the opening chapter (continuation of Protozoa) on " The Structure 

 of Animal and Vegetable Cells," by Prof. J. B. Farmer, is a con- 

 tribution to the knowledge necessary for a real recognition of 

 the " something " which makes for evolution. It is in such 

 minute studies that we can almost watch the earliest pulsations 

 of life. 



Dr. Lister writes on the Foraminifera, a treatise which Prof. 

 Ray Lankester states " contains much that is new and original." 

 It is probable that, to the general reader, the order Globigerinidea 

 of this Class is best known, and that owing to the classical 

 lecture by Huxley " On a piece of Chalk." Dr. Lister will guide 

 those who wish to travel farther in this study. Perhaps the 

 subject which will attract most modern students is that of the 

 Sporozoa, written by Prof. Minchin. The Sporozoa are always 

 with us. " There is perhaps no species of annelid, mollusc, 

 arthropod, or vertebrate which is not liable to become the host 

 of some kind of sporozoan parasite — at any rate in certain locali- 

 ties — while many animals harbour several species of these in- 

 truders at the same time." Sometimes their presence is almost 

 unnoticed, but in other cases they '•' produce dangerous or even 



