VI 
INTRODUCTION. 
His successor was William LeBaron, of Geneva, Kane Co., i 
pointed April 2, 1870. LeBaron’s First Annual Report, the seco 
of the series, counting that of Walsh as the first, was for the yi 
1870, and was published in August, 1871 as a separate pamphl 
the first edition, printed in February, having been destroyed 
fire before publication. I have not been able to as certain that 
was published in any other form. 
Le Baron’s Second Report, number three of the series, covei 
the year 1871, and was published in 1872 in Yol. III. of the Repo 
made to the General Assembly at its Twenty-seventh Session, c< 
vened January 4, 1871; and also as an appendix to the lransacti< 
of the Illinois Horticultural Society for the year 1871. 
His Third Report (the fourth from the office), for the year 18 
was published during the following year in the Reports made to 
General Assembly for the session of 18/3. It consisted of two pai 
the first devoted to injurious insects simply, and the second, pai 
separately, consisting of an introduction to general and econoi 
entomology, intended to prepare the way for a series of system? 
reports on the several orders of insects. 
The Fourth (and last) Report of Dr. Le Baron, cited in the 
lowing index as the fifth of the series, consisted of a reprint of Part 
of the preceding Report, followed by a systematic treatise on 
order Coleoptera, paged continuously with the foregoing, the wl 
being issued as the Report for 1873. It was printed in the appen 
to the Transactions of the State Horticultural Society for that yt 
and was also issued separately as an independent volume, co 
righted by the author. 
Although Dr. Le Baron continued in office until the expiration 
his term, April 9, 1875, no report seems to have been presented 
the year 1874. His successor, Cyrus Thomas, was appoir 
April 13, 1875. 
In the meantime the Legislature had, by an act “to change 
fiscal year,” approved March 29, 1875, and in force July 1 of t 
year, directed that the reports of a number of State officers, inci 
ing the State Entomologist, should be rendered to the Governor 
or before the first day of November in the year 1876, and bienni 
thereafter, closing with the fiscal year preceding each regular ses< 
of the General Assembly; and had further directed that no oi 
annual or biennial report should be made by any of the offi< 
mentioned. Dr. Thomas’s First Report (the Sixth of the State E 
mologist) was rendered, in accordance with this law, towards 
close of the year 1876, and related to that year and the preeed 
It is styled the “Sixth Report of the State Entomologist of Illii> 
* * * * First Biennial Report, by Cyrus Thomas, Ph. D., S 
Entomologist of Illinois.” This Report was published in the Tr; 
actions of the State Department of Agriculture for 1876 (Yol. 
Notwithstanding the direction above cited with respect to 
period to be covered by the successive reports of Die Entomologist. 
Legislature passed, during the session of 1877, an act, appr< 
and in force May 25 of that year, authorizing the State Boar 
Agriculture to append to and publish with their Annual Report 
