- 107 - 
(222) Hoffman, E. A., and Lindquist, A. W. 
1949. Fumigating properties of several new insecticides. Jour. 
Econ. Ent. 42: 436-438. 
(223) and Lindquist, A. W. 
19i+9. Effect of temperature on knockdown and mortality of house 
flies exposed to residues of several chlorinated 
hydrocarbon insecticides. Jour. Econ. Ent. 42: 891-893. 
(224) Roth, A. £., and Lindquist, A. W. 
1949. Effect of air temperature on the insecticidal action of 
some compounds on the sheep tick and on migration of 
sheep tick on the animal. Jour. Econ. Ent. 42: 893- 
896. 
(225) Hof master, E. N., and Greenwood, D. E. 
I949. Fall armyworm control on forage and truck crops. Jour, 
Econ. Ent. 42: 502-506. 
(226) Hough, W. S. 
1948 • Chlordan compared with parathion on plums. Jour. Econ. 
Ent. 41: 983-984. 
(227) and Hill, C. H. 
1947* Lead arsenate substitutes sought. 7a. Agr. Expt. Sta. 
Ann. Ept. (1946-1947): 32. 
(228) Howell, D. E., Eddy, G. W. , and Cuff, E. L. 
1949. Effect on horse fly populations of aerial spray applica- 
tions to wooded areas. Jour. Econ. Ent. 42: 644-646. 
(229) Huckett, H. C. 
1948. Control of the two-spotted spider mite on lima beans, on 
Long Island. Jour. Econ. Ent. 41: 202-206. 
(230) Hutson, E. 
1948. Grasshopper control in orchards. Mich. State Hort. Soc. 
Ann. Ept. (19^7) 77: 41-42. 
(231) Hymen, J. 
1946. Perfectionnements apportes ou relatifs a une methode de 
formation d'une nouvelle composition de matiere et 
produit qui en resulte. Belgian Patent No. 464,617, 
Apr. 16, 19^6. 
(232) 
1947» Mejoras en una neuva composicion de materia y el metodo 
de formarla. Mexican Patent Ho. 45,398, Mar. 19, 1947; 
applied for Mar. 13, 19^6. 
