8 
tion; the first by Mr. Marten, containing descriptions of 
new species of Illinois gall gnats, and the other by Mr. 
Hart—a descriptive list of the aculeate Hymenoptera of 
the State. 
Reference should here be made, for the purpose of 
completing this summary of our services in the field of 
economic instruction, to the various addresses made 
within the State by Mr. Marten and myself. 
DISTRIBUTION OF MATERIAL. 
In pursuance of the plan mentioned in my last biennial 
report, 14,000 insects were distributed during the winter 
of 1890-91 to thirty-nine public schools. These sets 
were named, labeled, and systematically arranged, and 
were accompanied by printed pamphlets giving the in- 
formation necessary to make them available for use in 
the work of the schools. Notwithstanding this heavy 
draft on our duplicate material, our entomological col- 
lections are already larger than before the distribution 
was made. 
The fact that the insects belonging to the State Labo- 
ratory of Natural History are now kept in the University 
building, and are held at the service of students, under 
suitable conditions, makes unnecessary any further col- 
lections, at present, under the law requiring a cabinet 
of insects to be prepared by the State Entomologist and 
deposited at the University. 
No collections have been sent during the past two 
vears to the State educational institutions or to the 
State museum, but according to a resolution passed by 
the State Board of World’s Fair Commissioners last 
spring, it is held that the collections now being made by 
the Laboratory for Exposition purposes, will be availa- 
ble at the close of the Exposition for distribution by 
the Laboratory to these institutions. 
S. A. ForBEs, 
September 13, 1892. Director. 
