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tories of insects, largely of economic species, made chiefly by Mr. 
Hart and Mr. Weed. 
To this list I should perhaps add the routine work of the office 
in the collection of specimens, especially of insects, and in the label- 
ing, determination, and arrangement of the insect collections which 
have accumulated in the office,--a work which falls especially upon 
Mr. Hart. | 
Here I ought also to mention the studies made, at the expense 
of the Laboratory appropriations, by Professor Burrill and his assist- 
ant, on certain families of the parasitic fungi of the State,—a work 
preliminary to the preparation of papers for our bulletins and the 
final report on the cryptogamic botany of Illinois. 
The field work of the Laboratory and office has fallen chiefly to 
myself and Mr. Weed. It has covered all parts of the State, from 
Cairo to Galena, but has mostly been done in southern Illinois, where 
the situation this year is of peculiar interest. The various trips 
made since last March aggregate 2500 miles of travel. 
Our publications comprise four series; the regular entomological 
reports, the bulletins of the entomological office, the bulletins of the 
State Laboratory of Natural History, and the State zoological report. 
The papers and reports recently prepared and published, or now in 
course of preparation, are as follows: 
(1) The 15th Report of the State Entomologist of Illinois, 
now practically finished and awaiting the orders of the State Board 
of Contracts. 
(2) A general account of the lake fauna of Illinois, delivered 
as an address to the Peoria Scientific Association and published in 
the Bulletin of that Association this year, and also in an emended 
edition, as a separate 
(3) A general article on contagious insect disease read as a 
presidential address to the Entomological Club of Cambridge, Massa- 
chusetts. 
(4) A special article on the same topic—the second of a series 
—containing the results of our investigations and experiments on 
this subject for the last two years. 
(5) An elaborate report on the experiments of last year with 
~arsenical poisons for the codling moth in the apple orchard, published 
as a bulletin of the office. The first edition of five hundred copies 
of this bulletin was soon exhausted and a second was issued. 
(6) We have likewise published and distributed widely two 
general circulars on the chinch bug in southern I1linois. | 
(7) I have also prepared two addresses to farmers’ institutes— 
on insects injurious to corn, and on apple insects—and have delivered 
_ one or the other of these addresses at eight farmers’ institutes dur- 
ing the winter and spring. 
(8) A descriptive paper prepared by Mr. Weed, on certain 
parasites of the insects of the apple orchard, is now in press as one 
of the articles of the Laboratory bulletin. 
