16 THE UNIVERSITY SCIENCE BULLETIN. 



and suggestive. He departs from the prosaic in setting forth 

 the behavior of the bugs he has studied. Like Uhler, he takes 

 the trouble to make you go with him to the aquarium or the 

 pool and see the little details of the daily life of the bugs he 

 depicts. 



In the past few years we have had a number of texts relat- 

 ing to water life, but little that is original on water bugs. 

 Wesenberg-Lund and Brocher stand out as most important 

 foreign contributors to the general biology of the group with 

 detailed studies upon single insects by Dogs, Wefelschied and 

 Hagemann. 



Much important work on morphology relates to the insect 

 biology, but to enumerate the many truly important papers on 

 mouth parts, genitalia, and the like, would bring us without 

 the limits of this paper. 



