374 THE ZOOLOGIST. 



gold, silver, lead, zinc, &c. These must have been intended for 

 his use, for they were useless in the economy of nature until a 

 sufficient amount of intelligence had been reached. Not only 

 were these made for man, but they appear to have been made as 

 rewards for the exercise of his intellect." Again, Mr. Hutton, 

 in discussing " non-utilitarian " characters in animals, has pro- 

 posed a motive in the evolution of man, whereby the " contem- 

 plation of the beauty seen in nature has stimulated his sluggish 

 soul, and has developed his aesthetic and religious faculties." 

 Hence it is a logical sequence to our author that the goal of 

 psychical evolution — for physical evolution in man may be con- 

 sidered as finished — u does not seem to lie in this world." We 

 have attempted to give an outline of the main thesis of these 

 lectures, and, however much we may withhold our assent to many 

 of the propositions, the volume is worth the study of all 

 zoologists who interest themselves in the problems and para- 

 doxes of animal life. 



Insects, their Structure and Life : a Primer of Entomology. By 

 Geo. H. Carpenter, B.Sc.Lond. J. M. Dent & Co. 



Among the very many works of this description which now 

 appear with a certain regularity, the above will hold its place as 

 a compilation conducted with discrimination and written with 

 care. All such works are necessarily more or less compilations ; 

 no entomologist of the present day has a complete grasp of the 

 whole subject, and must open an account with the writings of 

 other workers. The high-water mark was reached by Westwood 

 in his ' Modern Classification of Insects,' which, presumably by 

 an oversight, is not included in Mr. Carpenter's reference to 

 * General Works on Insects.' But since the date of that publi- 

 cation the field of study has been enormously enlarged, not only 

 by the vast accumulation of new facts, but also by what may be 

 now clearly recognized as the evolutionary method. To bridge 

 the chasm that now divides us from Westwood, and to bring his 

 book in line with the knowledge of the day, should be the motive 

 and action of a book we are all awaiting. 



For those who wish to possess a handy volume of reference 

 on entomology, which if not alogether encyclopaedic shall be at 





