-46- 
45. CONSUMERS* RESEARCH, Inc. 
1937. Gardening. VI. Insecticides end fungicides. Consumers' 
Res., Inc., Gen. Bui. 3 (9): 13-20. 
46. CRANE, D. B. 
1933. Rotenone - A new parasiticide. Cornell V e t. 23 (l): 15-31. 
47. CROSEY, C. R. , CHUPF , C, and LEIEY, R. W. 
1939. The control of diseases and insects effecting vegetable crops 
on Long Island. N. Y. Agr. Col. (Cornell) Ext. Bui. 278, 
revised, 07 pp.,illus. 
48. DANIELS, C. 77. 
1905.. A plea for the scientific study of native drugs and poisons. 
Malaya Branch Brit. Med. A s soc. Jour. [Singapore.] (n.s.) 
2: 3-5. [Reviewed in Brit. Med. Jour. 2373: 1475. ] 
49. BARLEY, M. M. 
1931. Some comparative tests with rotenone, nicotine, and pyrethrum, 
Jour. Econ. Ent. 24: 111-115. 
50. DAVIDSON, W. M. 
1924. Results of experiments with miscellaneous substances against 
the chicken mite. U. S. Deot. Agr. Bui. 1228:' 5,7. 
51, 
1930. Rotenone' as a contact insecticide. Jour. Econ. Ent. 23: 
868-874. 
52. 
1930. The relative value as contact insecticides of some con- 
stituents of derris. Jour. Econ. Ent. 23: 877-879. 
53. De ONG, E. R. , and TCIITE, L. T.W. 
1924. Further studies of derris as an insecticide. Jour. Econ. Ent 
17: 499-501. 
54. DOWSON,' V. H. W. 
1935. Notes on insecticide trials with date palms, Kut As-sayvid 
Estate, 1934. H a dar 8 (6): 174-175. 
