237 
exhibit, has been issued as Bulletin No. 31 of this Division, no further 
comment is necessary. Copies of this bulletin were kept for distribu- 
tion on the desk of the writer, who was in charge of the exhibit from 
the completion of its installation till near the close of the Fair, and whose 
duty it was to explain special features of the entomological exhibit and 
answer questions relative to insect injury and the means to be 
employed for the prevention and destruction of injurious species. 
Another collection exhibited in the Government Building was that 
of the United States National Museum. It consisted of thirty-two 
large cases designed to illustrate the classification of the families of 
American insects, using the word in its widest sense. This collection 
was prepared under the direction of Prof. Riley by Prof. J. B. Smith, 
and was purely educational in character. The different family char- 
acters were given on printed labels, and illustrated by full series-of 
specimens and drawings, many of the latter original and unpublished. 
This, as well as the major portion of the exhibit of the Department of 
Agriculture, will be preserved in the National Museum. 
The Division of Ornithology and Mammalogy of the Department of 
Agriculture also exhibited a few insects in this building, including two 
cases of insects commonly eaten by the Crow, Crow Blackbird, Cedar- 
bird and King-bird. 
In the Illinois State Building, the Illinois State Laboratory of Natural 
History, and the University of Illinois made a very creditable display, 
about one hundred and twenty-five cases in all being exhibited. For 
this, two rooms and their outer walls were used. The first of these 
was fitted up as the office of the State Entomologist and his assistants, 
being supplied with desks and tables, books and book-cases, typewriter, 
printing-x)ress, microscopes, and other office appliances. The smaller 
represented in miniature an insectary or rearing-room, and was fur- 
nished with vivaria and the customary apparatus used in rearing 
insects. 
On the book-shelves there were about 1,400 volumes, constituting a 
third of the entire entomological library of the State laboratory. 
Of the preserved specimens the following were exhibited: 
A large series of the commoner insects of Illinois, arranged in sys- 
tematic order, well mounted and labeled and made up of new speci- 
mens gathered in the field expressly for this purpose. This included 
nine cases illustrative of the distribution of Illinois butterflies. 
A part of the students' reference collection of the University of 
Illinois. 
Five cases of insects, constituting a series which is 'furnished by 
the State laboratory to the high schools of the State. 
An exhibit of noxious insects, including a series of about two hun- 
dred species that injuriously affect the Apple, and similar smaller cases 
of insects injurious to Corn, Wheat, the Strawberry, and other crops. 
