131 - 
44. 
193?. Sweetpotatg leaf "beetle an important pest ir. N rth 
Carolina. U. S, Dept. Agr., Eur. En t . and Plant 
Quarantine News Letter 4 (5): 24, mimeo. 
45. ,. ■ 
1937, Sulphur as a repellent against green clover worm. 
U. S. Dcp-c. Agr, , Bur. Exit, and PI. Quarantine News 
Letter 4 (12): 21-22, mimeo. 
46. BRETT, If. H. 
1868, The Indian triors of C-uirna; their condition and habits. 
5C0 pp. , illus. London. 
47. BRISTOL [ENGLAND] , UNIVERSITY 0? 
1937. Report on advisory work, 1935-1936. Agr. and Hort. Res. 
Sta. Ann, Rept. 1936: 263-293. Long Ashton, Bristol. 
48. BRITISH GUIANA DEPARTMENT OP AGRICULTURE 
1934. Haiari. Brit. Guiana Dept. Agr. Div. Repts. 1932: 62, 
65, 66 , 120, 140. 
49. 
193--:. Haiari. Frit. Guiana Sept. Agr. Div. Ropts. 1933: 56, 
103-109.. 
50. 
1935. Haiari. Brit. Guiana Dept. Agr. Div. Rnpts. 1934: 43, 
108, lib. 
51. BROMLEY, S. W. 
1937. Insecticides for shade trees. Free. Ann. Meeting 
Thirteenth Natl. Shade Tree Conference, Sept. 1-3, 1937 
pp. 130-140. 
52. BRONSON, T. E. 
1936. An improved apparatus for mixing insecticidal dusts. 
U. S. Pept. Agr,, Bur. Ent. and Plant Quarantine, 
ET-33, 2 pp., illus., mimeo. 
55. !' •' 
1937. An efficient method for mixing large or small quantities 
of insecticidal dusts containing n - conditioner. U. S. 
Dept. Agr.., Bur. Ent. and Fl. Quarantine, ET-115, 5 pp. 
illus. , multi graphed. 
54. BROOKS, CO. 
1937. Ro tenon©. Letter of October 2, 1937, addressed to the 
Chemical -Division, Bur. Foreign and Pom. Com., U. S. 
Pept. Com. 
