ENTOMOLOGY 



Loeb, J., and Northrop, J. H. 1917. On the Influence of Food and Temperature upon the 



Duration of Life. Journ. Biol. Chem., vol. 32, pp. 103-121. 

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University Press. 

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Food of Insects. Proc. Ent. Soc. Washington, vol. 20, pp. 12-18. 

 Headlee, T. J. 1918. Climate and Insect Investigations. Rept. Dept. Ent., N. J. Agr. 



Exp. Sta., 1917, pp. 442-445. 

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Particular Reference to their Seasonal Appearance. Amer. Nat., vol. 52, pp. 129- 



154.* 



Baumberger, J. P. 1919. A nutritional study of insects with special reference to micro- 

 organisms and their substrata. Journ. Exp. Zool., vol. 28, pp. 1-81, 18 figs.* 

 Riley, C. F. C. 1919. Some Habitat Responses of the Large Water-Strider, Gerris 



remigis Say. Amer. Nat. vol. 53, pp. 394-414; 483-505. 

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Lepidopterous Larvae. Amer. Nat., vol. 54, pp. 313-332. 

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Florida. Ann. Ent. Soc. Amer., vol. 13, pp. 325-380, 22 figs.* 

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Hatching of the Eggs of Aphis avense Fabricius and Aphis pomi DeGeer. Ann. 



Ent. Soc. Amer., vol. 13, pp. 391-400, pi. 31.* 

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remigis Say. Amer. Nat., vol. 52, pp. 394-631, figs. 1-6.* 

 Riley, C. F. C. 1920. Migratory Responses of Water-Striders during Severe Droughts. 



Bull. Brooklyn Ent. Soc., vol. 15, pp. i-io. 

 Claassen, P. W. 1921. Typha Insects: Their Ecological Relationships. Cornell Univ. 



Agr. Exp. Sta., Memoir 47, pp. 459-529, pis. 39-48.* 

 Craighead, F. C. 1921. Hopkins Host-Selection Principle as Related to Certain Ceram- 



bycid Beetles. Journ. Agr. Res., vol. 22, pp. 189-220. 

 Headlee, T. J. 1921. The Response of the Bean Weevil to Different Percentages of 



Atmospheric Moisture. Journ. Econ. Ent., voL 14, pp. 264-268, fig. 5. 

 Livingston, B. E., and Shreve, F. 1921 . The Distribution of Vegetation in the United 



States, as Related to Climatic Conditions. Carnegie Inst. Washington, Pub. 



No. 284, 16 + 590 pp., 74 figs., 73 pis.* 

 Ping, C. 1921. The Biology of Ephydra subopaca Loew. Cornell Univ. Agr. Exp. Sta., 



Memoir 49, pp. 557-616, pis. 54-57.* 

 Riley, C. F. C. 1921. Distribution of the Large Water-Strider, Gerris remigis Say, 



throughout a River System. Ecology, vol. 2, pp. 32-36, figs. 1-3. 



INSECTS IN RELATION TO MAN 



Harris, T. W. 1862. A Treatise on Some of the Insects Injurious to Vegetation. Third 



Ed. ii -f 640 pp., 278 figs., 8 pis. Boston. 

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Ins., pp. 1-80, figs. 1-12. 

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Lippincott & Co. 

 Packard, A. S. 1889. Guide to the Study of Insects. Ed. 9. 12 -f 715 pp., 668 figs., 



15 pis. New York. Henry Holt & Co. 



