The Action of some Organic Compounds when used as Stomach Poisons for Caterpillars

Abstract

This work was commenced in 1919 and continued in 1920 and 1923. The writer's thanks are due to Prof. H. Maxwell Lefroy, who provided facilities for the carrying out of the work at Westbrook House, Heston, and showed great interest in its progress. Publication of the results has been delayed in the hope that further experiment could be made in the near future.