J. Insect Physiol. — Journal of Insect Physiology. 
J. Invertebr. Pathol. — Journal of Invertebrate Pathology. 
J. Kans. Entomol. Soc. — Journal of the Kansas Entomological 
Society. 
J. Minn. Acad. Sci. — Journal of the Minnesota Academy of 
Science. 
Kans. Agr. Exp. Sta. Dir. Rep. — Kansas Agricultural Experi- 
ment Station Director’s Report. 
Kans. Farmer — Kansas Farmer. 
Ky. Agr. Exp. Sta. Bull. — Kentucky Agricultural Experiment 
Station Bulletin. 
Mem. Entomol. Soc. Can. — Memoirs of the Entomological So- 
ciety of Canada 
Mich. Agr. Exp. Sta. Quart. Bull. — Michigan Agricultural 
Experiment Station Quarterly Bulletin. 
Mich. State Bd. Agr. Annu. Rep. — Michigan State Board of 
Agriculture Annual Report. 
Mich. State Univ. Coop. Ext. Serv, Ext. Bull. — Michigan State 
University Cooperative Extension Service Extension Bulletin. 
Minn. Agr. Ext. Fact Sheet Entomol. — (Exact source un- 
known). 
Minn. Farm Home Sci. — Minnesota Farm and Home Science. 
Minn. Sci. — Minnesota Science. 
Miss. Ext. Serv. Circ. — Mississippi Extension Service Circular. 
Mo. Agr. Exp. Sta. Bull. — Missouri Agricultural Experiment 
Station Bulletin 
N. C. Dep. Agr. Bull. — North Carolina Department of Agricul- 
ture Bulletin 
N. Dak. Farm Res. — North Dakota Farm Research. 
Nebr. Agr. Exp. Sta. Annu. Rep. — Nebraska Agricultural Ex- 
periment Station Annual Report. 
Nebr. Agr. Exp. Sta. Bull. — Nebraska Agricultural Experiment 
Station Bulletin. 
Nebr. Agr. Exp. Sta. Ext. Circ. — Nebraska Agricultural Ex- 
periment Station Extension Circular. 
Nebr. Agr. Exp. Sta. Quart. — Nebraska Agricultural Experi- 
ment Station Quarterly. 
Nebr. Exp. Sta. Quart. — Nebraska Experiment Station Quar- 
terly 
Nebr. Farmer — Nebraska Farmer. 
Nebr. State Bd. Agr. Annu. Rep. — Nebraska State Board of 
Agriculture Annual Report. 
Nebr. State Entomol. Bull. — Nebraska State Entomologist 
Bulletin. 
Ohio Agr. Exp. Sta. Bull. — Ohio Agricultural Experiment Sta- 
tion Bulletin. 
Ohio Agr. Res. Develop. Center Res. Circ. — Ohio Agricultural 
Research and Development Center Research Circular. 
Ohio Rep. Res. Develop. — Ohio Report on Research and De- 
velopment. 
Ohio State Univ. Agr. Ext. — Ohio State University Agricul- 
tural Extension. 
Ont. Dep. Agr. Food Fact Sheet AGDEX — Ontario Depart- 
ment of Agriculture and Food, Fact Sheet AGDEX. 
Pestic. Inst. News — The Pesticide Institute News. 
Plant Dis. Rep. —,Plant Disease Reporter. 
Pract. Entomol. — Practical Entomologist. 
Proc. Acad. Natur. Sci. Philadelphia — Proceedings of the 
Academy of Natural Sciences of Philadelphia. 
Proc. Annu. Hybrid Corn Ind.-Res, Conf. — Proceedings of the 
Annual Hybrid Corn Industry-Research Conference (Ameri- 
can Seed Trade Association). 
Proc. Entomol. Soc. Wash. — Proceedings of the Entomological 
Society of Washington. 
Proc. Indiana Acad. Sci. — Proceedings of the Indiana Academy 
of Science. 
Proc. N. Cent. Br. Amer. Assoc. Econ. Entomol. — Proceedings 
of the North Central Branch of the American Association 
of Economic Entomologists. 
Proc. N. Cent. Br. Entomol. Soc. Amer. — Proceedings of the 
North Central Branch of the Entomological Society of 
America. 
Proc. Symp. Physiol. Ecol. Plants Anim. Extreme Environ. — 
Proceedings of the Symposium on Physiological Ecology of 
Plants and Animals in Extreme Environments, Dubrovnik, 
Yugoslavia. 
S. Corn Impr. Conf. Rep. — Report of the Southern Corn 
Improvement Conference. 
S. Dak. Farm Home Res. — South Dakota Farm and Home 
Research. 
S. Dak. State Coll. Agr. Ext. — South Dakota State College of 
Agriculture Extension. 
Trans. Amer. Entomol. Soc. — Transactions of the American 
Entomological Society. 
Trans. Amer. Soc. Agr. Eng. — Transactions of the American 
Society of Agricultural Engineers. 
25th Corn Sorghum Res. Conf. — 25th Corn and Sorghum Re- 
search Conference. 
U.S. Commr. Agr. Annu. Rep. — United State Commissioner 
of Agriculture Annual Report. 
U.S. Dep. Agr. Agr. Handb. — United States Department of 
Agriculture, Agriculture Handbook. 
U.S. Dep. Agr. Bull. — United States Department of Agricul- 
ture Bulletin. 
U.S. Dep. Agr. Div. Entomol. Bull. — United States Depart- 
ment of Agriculture, Bureau of Entomology, Bulletin. 
U.S. Dep. Agr. Bur. Entomol. Circ. — United States Depart- 
ment of Agriculture, Bureau of Entomology, Circular. 
U.S. Dep. Agr. Div. Entomol. Bull. — United States Depart- 
ment of Agriculture, Division of Entomology, Bulletin. 
Univ. Calif. Publ. Entomol. — University of California Publi- 
cations in Entomology. 
Univ. Ill. Coop. Ext. Serv. Circ. — University of Illinois Co- 
operative Extension Service Circular. 
Univ. Nebr. Agr, Ext. Serv. — University of Nebraska Agricul- 
tural Extension Service. 
Va. J. Sci. — Virginia Journal of Science. 
Va. Polytech. Inst. Ext. Leafl. — Virginia Polytechnic Institute 
Extension Leaflet. 
Wis. Agr. Exp. Sta. Bull. — Wisconsin Agricutural Experiment 
Station Bulletin. 
15 
