54 THE GYPSY MOTH APPENDIX. 



clence before the Standing Committee on Agriculture/' in 

 the Canadian Parliament, pp. 19 and 20, referred to this new 

 insecticide ; and again in the report of the Entomological 

 Society of Ontario, p. 71 (1894), he referred to its value. 

 In the seventh annual report of the Vermont Agricultural 

 Experiment Station, p. 123 (1894), Dr. G. H. Perkins, the 

 entomologist, recommended the use of arsenate of lead for 

 the destruction of several different kinds of insects, and 

 gave the formula for making it. 



Arsenate of lead was described by Mr. E. H. Forbush, 



*/ 



with its effects, value and limitations, in the report of the 

 gypsy moth committee for 1895, p. 1G. Mr. C. P. Loans- 

 bury, in Bulletin No. 28 of the Hatch Experiment Station, 

 p. 9 (1895), recommended this insecticide for the destruc- 

 tion of canker worms. In the Massachusetts Crop Report 

 of June, 1895, Mr. A. H. Kirkland gave a general descrip- 

 tion of arsenate of lead, its cost, etc. In the fifteenth 

 annual report of the New Jersey State Agricultural Experi- 

 ment Station, p. 400 (1895), Prof. J. B. Smith described 

 arsenate of lead, and recommended it highly for use against 

 the elm-leaf beetle. In the "Proceedings of the Association 

 of Economic Entomologists," p. 24 (1895), Mr. C. L. Mar- 

 latt gave an account of this insecticide, with a formula for 

 its preparation furnished by Mr. K. P. McElroy of the 

 Division of Chemistry of the Department of Agriculture, 

 Washington, D. C. 



A more complete account of arsenate of lead, with the his- 

 tory of its discovery, uses and numerous experiments per- 

 formed with it, was given in "The Gypsy Moth," by Forbush 

 andFernald, pp. 69^80, 87, 142, 143, 145,449-473 (1896), 

 and Mr. Forbush gave an account of its use on hedges in the 

 report of the gypsy moth committee, p. 18 (1896). In Bul- 

 letin No. 36 of the Hatch Experiment Station, p. 6 (1896), 

 Mr. R. A. Cooley recommended the use of this insecticide 

 against the elm-leaf beetle. In the same year Prof. J. B. 

 Smith, in his "Economic Entomology," p. 436, described and 

 recommended arsenate of lead as an insecticide for leaf-eating 

 insects. In the " Proceedings of the Association of Eco- 



O 



nomic Entomologists" for 1896, p. 27, Mr. A. H. Kirkland 

 gave an account of arsenate of lead ; and in the same volume, 

 p. 44, Prof. J. B. Smith referred to the ease with which this 



