334 ENTOMOLOGY 



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. Thoroughly scientific, with 

 a broad view and a clear insight into the agricultural needs of the state, 

 his authoritative and scholarly works upon economic entomology rank 

 with those of the highest value. Of the sixteen 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 published 

 (1869 to 1877) nine reports as state entomologist. To quote Dr. How- 

 ard, "They are monuments to the state of Missouri, 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. 



State Experiment Stations. The organization of State Agri- 

 cultural Experiment Stations in 1888, under the Hatch Act, gave eco- 

 nomic entomology an additional impetus. At present at least one ex- 

 periment station is in operation in every state and territory; there being 

 stations in Alaska, Hawaii, Porto Rico and Guam. These stations, 

 often in connection with state agricultural colleges, maintain altogether 

 over fifty men who concern themselves more or less with entomology, 

 and have issued a great number of bulletins upon injurious insects. 

 These publications* are extremely valuable as a means of disseminating 

 entomological information, and not a few of them are based upon the 

 investigations of their authors. Especially noteworthy as regards 

 originality, volume and general usefulness are the publications of Slinger- 

 land in New York, Smith in New Jersey, Webster in Ohio (formerly), 

 Garman in Kentucky, Hopkins in West Virginia, Gillette and Osborn 

 in Iowa and Gillette in Colorado. The reports that Lugger issued in 

 Minnesota, though compiled for the most part, contain much serviceable 

 information, presented in a popularly attractive manner. 



While these workers have been conspicuously active in the publica- 



