404 . ENTOMOLOGY 



ing state entomologist, a report in the interests of horticulture 

 an accurate, sagacious and altogether excellent piece of ori- 

 ginal work. Like many other economic entomologists he was 

 a prolific writer for the agricultural press and his contribu- 

 tions, numbering about four hundred, were in the highest 

 degree scientific and practical. 



Walsh was succeeded by Dr. William LeBaron, who pub- 

 lished (1871 to 1874) four able reports of great practical 

 value. In the words of Dr. Howard, " He records in his first 

 report the first successful experiment in the transportation of 

 parasites of an injurious species from one locality to another, 

 and in his second report recommended the use of Paris green 

 against the canker worm on apple trees, the legitimate outcome 

 from which has been the extensive use of the same substance 

 against the codling moth, which may safely be called one of 

 the great discoveries in economic entomology of late years." 



Following LeBaron as state entomologist, Rev. Cyrus 

 Thomas and his assistants, G. H. French and D. W. Coquillett, 

 produced a creditable series of six reports (1875 to 1880) as 

 part of a projected manual of the economic entomology of 

 Illinois. 



Since 1882, Prof. Stephen A. Forbes has fulfilled the duties 

 of state entomologist in the most efficient manner. Thor- 

 oughly scientific, with a broad view and a clear insight into 

 the agricultural needs of the state, his authoritative and schol- 

 arly works upon economic entomology rank with those of the 

 highest value. Of the twelve reports issued thus far by Dr. 

 Forbes, those dealing with the chinch bug, San Jose scale, corn 

 insects and sugar beet insects are especially noteworthy. 



Missouri. Appointed in 1868, Prof. Charles V. Riley pub- 

 lished (1869 to 1877) nine reports as state entomologist. To 

 quote Dr. Howard, " They are monuments to the state of Mis- 

 souri, and more especially to the man who wrote them. They 

 are original, practical and scientific. . . . They may be said to 

 have formed the basis for the new economic entomology of 

 the world." Riley's subsequent work will presently be spoken 

 of. 



