5 
took, at the request of the United States Entomologist, 
the introduction of one of its foreign parasites into the 
wheat fields of [linois. 
A very large amount of entomological breeding-cage 
work has been done by us in the two years just past, 
but of a kind which it is impossible to summarize. 
Something of the amount of general work done in en- 
tomology may be inferred from the fact that we have 
added to the pinned collections fully 20,000 specimens, 
and to the ‘‘biological” series, that illustrating the life 
history and habits of Illinois insects, 2,700 bottles and 
vials. 
PUBLICATIONS. 
The regular publications of the Laboratory and Ento.- 
mologist’s office during the past two years have been 
less numerous than usual; but the matter now in press 
_and far advanced in printing is, on the other hand, unu- 
sually important. 
My sixth report as State Entomologist, the seven- 
teenth of the entire series. was printed in 1891. It con- 
tains 105 pages and seven plates, three of which are 
colored, with an appendix of 86 pages and one _ plate. 
One of the articles of this report was issued separately 
in advance, as a bulletin of the office. My seventh re- 
port is now in course of preparation. 
A second edition of the first volume of our report on 
the ornithology of the State, authorized by the legisla- 
ture at its last session, has been long delayed, owing to 
difficulties concerning the supply of paper. These have 
been met, however, by the State Board of Contracts, 
and the printing from our stereotyped plates is in prog- 
ress at the time of writing. This volume stops with the 
Columbide, but a continuation and completion of this 
work on the systematic ornithology of the State has 
also been printed, and is now nearly ready for distribu- 
tion as a first part of the second volume of the zodlog- 
ical series of the Natural History Survey. 
