Abstract
A large amount of work has lately appeared dealing with d’Herelle’s Coccobacillus acridiorum and his method of combating noxious grasshoppers. Some investigators have been able to confirm d’Herelle’s results; others have been unable to do so, and since the entire subject seems to be in a state of confusion, I undertook a systematic study of a number of cultures which I obtained and which were distributed under the name of Coccobacillus acridiorum d’Herelle. As I suspected, some of the separate cultures proved to represent either different species or varieties of the same species. This fact may account for some of the contradictory views held by so many workers and it is my hope that this article will also demonstrate the need for attention to the ordinary principles of bacteriology which seem to be so persistently neglected by many entomologists.

This publication has 0 references indexed in Scilit: