118 
Psyche 
[Sept.-Dee. 
disproven. This failure to emphasize the present status of 
knowledge renders the text at times difficult to use as a refer- 
ence book. 
Entomologists will find the book indispensable in answering 
all sorts of questions that arise concerning these remarkable 
plants and in suggesting fruitful problems that await investiga- 
tion. 
Charles T. Brues 
