THE CANADIAN ENTOMOLOGIST 35 



ever, of extreme value and will, it is hoped, lead to greater zeal in 

 collecting so that many additions may be made. Unfortunately, ento- 

 mologists are few in Toronto, and comparatively little systematic 

 collecting has been accomplished outside of two or three of the 

 better known orders, and even in these the work has been confined 

 largely to certain families. It is, however, such lists as these 

 which furnish the foundation upon which to build. Altogether 

 2,448 species are listed, as follows: 



Orthoptera 61 



Dermatoptera 1 



Plecoptera 2 



Ephemerida 12 



Odonata 60 



Hemiptera 92 



Neuroptera 8 



Trichoptera 5 



Coleoptera 1076 



Lepidoptera 619 



Hymenoptera 263 



Diptera 249 



2448 

 At the end of the lists references are given to the more general 

 descriptive works, useful in identification. 



Arthur Gibson. 



"ENTOMOLOGY WITH REFERENCE TO ITS BIO- 

 LOGICAL AND ECONOMIC ASPECTS." 



Review or Dr. Folsom's Revised Entomology. 



Dr. Folsom's Entomology is familiar to all students of the 

 subject, holding as it does a place of its own in the field of Ento- 

 mology. The revised edition, while no larger than the previous 

 editions, presents many new and interesting facts. The Chapter 

 on Evolution has been omitted and one on Transmission of Disease 

 by Insects substituted. 



Most text books of Entomology consider it as a subject in 

 itself ignoring its relation to, and dependence upon, the wider 



