THE CANADIAN ENTOMOLOGIST. 287 



These several topics may be treated of in other works, but in none so 

 completely as in the more than two hundred pages that Dr. Folsom devotes 

 to them. The volume concludes with a very full classified bibliography 

 and a necessary index. The plates and other illustrations, a large 

 number of which are original, are excellent, and add greatly to the value 

 of the work. A. L. Melander. 



We wish to add our testimony to the excellence of Dr. Folsom's new 

 work on Entomology. As a text-book it covers a field hitherto 

 unoccupied, and will, we are sure, prove most useful to teachers and 

 students in scientific and agricultural institutions, and will also be found 

 instructive and interesting by all who are in any way devoted to the study 

 of insects. It should find a place on the book shelves of every working 

 entomologist, and when there will be constantly referred to and consulted. 

 It is written in a clear and attractive manner, and is replete with informa- 

 tion gathered from many sources, and including the most recent discoveries 

 and investigations. We congratulate the author on the completion of an 

 admirable piece of vv^ork, for undertaking which he deserves the grateful 

 thanks of all North American entomologists. C. J. S. Bethune. 



Explanation of Terms Used in Entomology. — Prepared by John B. 

 Smith, Sc. D., Professor of Entomology in Rutgers College, etc. Pub- 

 lished by the Brooklyn Entomological Society, Brooklyn, N. Y. 

 (Price, $2.00.) 



Every Entomologist has, no doubt, been at a loss from time to time 

 regarding the exact meaning of some term that he has met with in a 

 descriptive article on some group of insects in which he is interested. He 

 may have been able to guess the meaning from its obvious derivation from 

 Greek or Latin, or to ascertain it by consulting a comprehensive diction, 

 ary. On the other hand, his knowledge of classical languages may be 

 slight and no library may be available, and thus he is left in doubt regard- 

 ing the term which is of much importance to a right understanding of the 

 article. Thanks to Dr. Smith's careful work, he may now be relieved of 

 this difficulty ; the Glossary just published will fulfil all his vvants in this 

 respect and a reference to it will give in a clear and concise form the 

 meaning of the hitherto unknown term. 



The volume contains over 150 pages, and at a rough calculation be- 

 tvveen four and five thousand terms. We have tested it in many cases 

 and have also dipped into it at random here and there; in every instance 



