8 



Articles written at the Labr.ratory, but published elsewhere, in- 

 clude a paper on the present state of our knowledge concerning con- 

 tagious insect diseases, prepared as a presidential address for the En- 

 tomological Club of Cambridge, Massachusetts, and published in 

 "Psyche," the organ of the Club; a paper on the food of the fishes 

 of the Mississippi Valley, read at the Seventeenth Annual Meeting 

 of the American Fisheries Society in Detroit, Michigan, and pub- 

 lished in their " Transactions" and also as a separate pamphlet: a 

 paper on the relations of wheat culture to chinch bug injury, read 

 at the Cleveland meeting of the Society for the Promotion of Agri- 

 cultural Science and published in their "Proceedings;" an address 

 as president of the Western Naturalists' Association, delivered at 

 Champaign and published in the "American Naturalist;" four papers 

 for the State Horticultural Society by myself and Mr. Weed, printed 

 in the annual volumes of the Society; three technical entomological 

 articles by Mr. Weed and two by myself, printed in "Psyche"* and 

 Entomologica Americana ; and a considerable number of articles 

 written for the agricultural papers in response to inquiries from their 

 editors. Here also should be mentioned an article by Prof. Burrill, 

 giving the results of his study of the broom-corn disease already re- 

 ferred to, — this paper being published in the Proceedings of the 

 Society of American Microscopists for 1887. 



GENERAL EDUCATIONAL WORK. 



Among addresses made by the office force but not regularly pub- 

 lished, are seven on entomological topics, prepared for farmers' insti- 

 tutes and delivered twenty-six times in all; one on the chinch bug. 

 delivered six times before county conventions called to adopt meas- 

 ures for joint action against that insect pest; two on educational 

 topics before the State Teachers' Association and the Teachers" Asso- 

 ciation for Central Illinois; and one read to the Peoria Scientific 

 Association and at the commencement exercises of the State Uni- 

 versity of Indiana. 



RELATIONS TO THE AGRICULTURAL EXPERIMENT STATION. 

 The recent organization, at the University, of the State Agri- 

 cultural Experiment Station has raised the question of the relations 

 of the work thus instituted to that of the Natural History Labora- 

 tory and the State Entomologist's Office with the efEect to bring 

 about an adjustment of the two at their points of contact in crypto- 

 gamic botany and economic entomology. The purpose of the State 

 Laboratory being essentially scientific and educational, its results are 



