320 



SCIENCE 



[Vol. XXII. No. 566 



eral reader, treating as it does of the habits of insects and 

 giving little or nothing in regard to the dry details of 

 anatomy. The author attempts here jsarticularly to des- 

 cribe the industrial habits of animals, more particularly 

 those of social animals. He describes the methods of 

 hunting and the methods of carrying of war and the gen- 

 eral methods of defence of animals. He gives an account 

 of the various habits possessed by animals of obtaining 

 and storing provisions, describing the habits of garden- 

 ing ants and agricultural ants, and giving an account of 

 the slavery that exists among certain species of ants as 

 well as their habits of "cattle keeping." He gives an ac- 

 count of the methods for rearing the young; of the meth- 

 ods of building houses and of the material and archi- 

 tecture of the dwellings of various animals; discusses 

 habits of sanitation and defence against diseases. This 

 account is extremelj' entertaining reading and is full of 

 the most striking incidents. The preacher will find anec- 

 dotes for illustration ; the lecturer find exampiles to en- 

 liven his lectures; the psychologist will find many facts 

 to ponder over and explain, and everj' one will find much 

 to interest and to wonder about, so that, on the whole, a 

 more readable book on entomology can hardly be men- 

 tioned. 



The last of the four has quite a different scope and is 

 of a more technical scientific character. The fact that 

 this is one of the International Scientific Series is enough 

 to determine its high character. The author aims to 

 give in this book a complete account of the higher Crus- 

 tacea (Malacostraca). He was unfortunately, however, 

 obliged to leave out the description of the Amphipoda, 

 since the sfjace assigned to him would not admit of their 

 treatment. This book begins with a careful description 

 of the general anatomy of the crustacean groups, with an 

 outline of their classitication. This part of the book is, 

 unfortunately, not illustrated by figures, so that it will be 

 hardly intelligible to one not acquainted with the material 

 beforehand. Then there follows, in separate chapters, 

 descriptions of the various orders, tribes and families of 

 the Crustacea and a short account of all of the important 

 genera. Numerous illustrations of more common species 



are given throughout the book, and the descriptions and 

 history of the different genera will prove of especial 

 value. This volume of the International Scientific Series 

 is an especially valuable book for a student wanting a 

 thorough knowledge of Crustacea, for it will enable him 

 to determine the general character and relations of any 

 Crustacea which he may find, and in many cases enable 

 him to determine any species at hand, although it does 

 not pretend to be a systematic account of the Crustacea. 

 Even a more valuable book will it be for a reference 

 library book. Unlike the other three books above given, 

 this one can hardly be regarded as a readable book, but 

 must be looked on as a work for reference. As such a 

 book it will find a valuable place in the libraries of all 

 students of zoology. 



Elementary Palaeontology for Geological Students.^ By Henest 

 WooD5, B. A., F. G. S. Cambridge, University Press. 

 222 p., $1.60. 



This little book is a text-book, designed for the student 

 to use with specimens of fossils in his hands. It gives the 

 general characteristics of the groups of animals im- 

 portant to the palaeontologist and a brief description of 

 the most important genera of fossils. It gives also at the 

 close of the discussion of each group an outline history of 

 the group in the past. The book is of value as a guide 

 to a student who has access to a good collection of fossils; 

 but having almost no figures of fossils in it, it is of no use 

 for any other purposes. It is not designed, indeed, for 

 any other purpose, but the geological student will find it 

 a convenient handbook to carry into a museum for refer- 

 ence and study. 



— Messrs. Macmillan & Co., of New York, announce for 

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 vanced and Collegiate Students." By Geo. F. Atkinson, 

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 nell University. Profusely illustrated. The book is 

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