Annals of the Entomological Society of America (1949)

Articles of Annals of the Entomological Society of America entered for 1949:

Volume (issue): 42 (2)
Annals of the Entomological Society of America (1949) 42, 134-140
E.H. Slifer (1949)
Variations, during developments, in the resistance of the grasshopper egg to a toxic substance