' 6 



Three articles have been published as bulletins of the 

 J^aboratory: one by Professor Weed on a plant louse 

 species, one by Professor Gillette on new jiall flies in the 

 Laboratory collections, and one by myself on insect 

 bacteria. We have now in press in this series, and nearly 

 ready for distribution, a full descriptive monojiraph of 

 the reptiles and amphibians of the State (173 pag'es and 

 seven ])lates), by Professor Garman, and a similiarly ex- 

 haustive account of the Illinois species of one of the 

 families of true bujijs (Membracidse), by Dr. F. W. Godinji'. 



Besides these regular publications we have prepared 

 and printed, in connection with the distribution of col- 

 lections to be referred to later, two lists, one of dupli- 

 cate insects in the collection of the Laboratory (nine- 

 teen pages), and one a list of economic species for public 

 schools (thirteen pages). 



The following is a list of papers by the Laboratory 

 force, published during the two year.<, the work for 

 which has been done at the Laboratory. 



Forbes, S. A.— Synopsis of Recent Work with Arsenical Insecti- 

 cides. (Trans. 111. State Hort. Soc, 1889. p. 310.) 



On a Bacterial Insect Disease. CNortli American Practitione •. 

 1891, p. 4ai : Am. Monthly Micr. Journ., 1891, p. 246.) 



Bacteria Normal to Digestive Organs of Ilemiptera. (Hull. 

 111. State Lab. Nat. Hist., iv, page 1.) 



On Sonic Lake Superior Entoniostraca. I Rep. V. S. Fish 

 Comm., 1887, p. 701.) 



Preliminary Report upon the Invertebrate Animals inhabit- 

 ing Lakes Geneva and Mendota, Wisconsin, with an Ac- 

 count of the Fish Epidemic in Lake Mendota in 1884. 

 (Bull. IT. S. Fish Comm.. viii, p. 478.) 



A Summary History of the Corn-Root Aphis. (Insect Life, 

 iii, p. 2;«.) 



On the Life History of the White iJrubs. (Insect Life iii.. 

 p. 239.) 



Report of Progress in Economic Entimiology. (Proc. 4th Ann. 

 Convention Ass'n Am. Agr. Colleges and Exper. Stations: 

 in ^lisc. iiull. No. 3, V. S. Dept. Agr.. Ortice Exper. Sta- 

 tions, p. 29.) 



Tlie Ih'ssian Fly. ilhill. Fiiiv. Agr. Exper. Station. No. 

 12. 1). 377.) 



