![Transcription Center logo](/themes/custom/tc_theme/assets/image/logo.png)
This transcription has been completed. Contact us with corrections.
8 [[strikethrough]]15[[/strikethrough]] [[strikethrough]]41[[/strikethrough]] Charles V. Riley, Micro-Organisms as Insecticides. Scientific American Supplement, October 31, 1891, p. 13206. Abstract of paper read before Section F of the American Association for the Advancement of Science, August 22, 1891, The author gives a review of previous experiments in using micro-organisms in the dissemination of contagious diseases among injurious insects, and dwells upon the difficulties with which this subject is still surrounded.