-90- . 
39. BRISTOL [ENGLAND] .UNIVERSITY .."..-- 
1936. Report on advisory ™ork 1934^35. Bristol Univ. Agr. and 
Hort. Res. Ste. Ann.. *pt. -1935: 220-247. 
40. BRITTAIN, W. H. 
1921. Experiments in the control of the cabbage maggot 
(.Chortophila br essicae Bouche) in 1920. ~Eht. Soc. Nova 
Scotia. Proc. 6: 54-73. 
41. 
1922. urther experiments in the control of the cabbage maggot 
( Chortophila brassicae Bouche) in 1921. Acad. Ent. S r .c. 
Proc. 7: 49-71. - 
42. 
1925. Some miscellaneous insecticide tests. Acad. Ent. Soc. 
Proc. 10: 23-42. • * 
43. BRUCE, W. G. 
1940. The medication of cattle for the control of hornflies. 
Kans. Ent. Soc. Jour. 13 (2): 41-43. 
44. 
1940. The hornflyand i ts control. U. S. De'pt. Agr., Bur. Ent. 
and Plant Qjiar.' Leaflet 205: 5, illus. 
45. BUCHMANN, VT . 
1932. Chiron on id ens chad eh bei dem Eelebt-schlamm-verfahren und 
ihre Verhutung und Behebung mit che^ischen Mitteln. 
Ztschr. Gesundh'eitstcchnik Strd tehygiene 24: 31-38, 
83-102. 
46. ' BURTON, D. 
1934. ^he warble fly. Leather Trades Rev. 47: 1477-1479. 
47. BUSHLAN$, R. C. 
1940. The toxicity of soroe>*rgfinic compounds to young screvnvorms. 
Jour. Econ. Ent. 33: 669-67 6. 
