256 



PSrCHB. 



[June i8i)5. 



COMSTOCK'S MANUAL. 



Professor and Mrs. Comstock have made a 

 happy venture in their new Manual.* It is 

 quite different in plan and execution from 

 anything before attempted and, especially 

 in simplicity of language, is far better fitted 

 for the beginner than any work with which 

 we are acquainted. Excepting for the 

 jnention of the commoner forms, admirably 

 illustrated and almost entirely by original 

 cuts (a few of the smaller of which have 

 been unfortunately ruined in the printing), 

 the student is carried only as far as the 

 families. More than that would be utterly 

 impossible in a single volume, but it would 

 have added greatly to its usefulness if for 

 each family, either in its place or in an 

 appendix, short references had been made 



* A Manual for the study of insects, by J. H. Comstock 

 and Anna E Comstock. 12,701 pp., 707 figs., 6 pi. Ithaca 

 1805, 8°. 



to the principal literature to enable the 

 student to know how to proceed further. 

 In carrying out their plan the authors have 

 employed a vast number of tables of great 

 simplicity and directness; but not content 

 witli this they have introduced (for the first 

 time, we believe, in such a manual) a uniform 

 terminology for the venation of the wings 

 of all insects, so that the work becomes an 

 important aid to the advanced student as 

 well. Their system has the merit of sim- 

 plicity and of accordance with the principal 

 terminology heretofore employed, but the 

 working of this out for all the orders of 

 insects and its direct application throughout, 

 merits the thanks of every student and must 

 have entailed far more labor than is com- 

 monlv given to a volume of this sort. It is 

 in the nature of an original research. We 

 have not space to enter upon further details 

 but must express our belief that the volume 

 will greatly further the study of insects in 

 this country. 



A. SMITH & SONS, 269 PEARL STREET, New York. 



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