(\. xexvidi 2) 
CockerELt (T. D. A.). Why does our Public fail to support Research ? 
[Scientific Monthly, Co!orado, 1920.] The Author. 
———— Some Neotropical Meliponid Bees. 
[ Bull, Am. Mus, Nat. Hist., New York, Vol. X LIT, 1920.] 
Dr. Imms. 
———— Fossil Arthropods in the British Museum. I. 
[Ann. and Mag. Nat. Hist., Ser. 9, Vol. V, London, 1920.] 
———— Some Bees from Sandakan, Borneo. 
[Phil. Journ. Sci., Manila, Vol. XVII, 1920.] 
Biographical Memoir of Alpheus Spring Packard, 
[Nat. Ac. Sci., U.S.A., Washington, 1920. ] 
Some Bees from Panay. 
[Phil. Journ. Sci., Manila, 1920. ] 
——— Eocene Insects from the Rocky Mountains. 
[Proc. U. 8. Nat. Mus., No. 2,313, Vol. LVIL; Washington, 1920.] 
2 copies. 
——-—— Supplementary Notes on Philippine Bees. 
[Phil. Journ. Sci., Manila, 1921. } 
Some Eocene Insects from Colorado and Wyoming. 
[Proc. U.S. Nat. Mus., No. 2,358, Vol. LIX, Washington, 1921. ] 
2 copies. The Author. 
———— and Sanpuousr (Grace). Some Eocene Insects of the Family 
Fulgoridae. 
[Proc. U. 8. Nat. Mus., No. 2,380, Vol, LIX, Washington, 1921.] 
2 copies. 
——— [See Lurz (Frank E.).] 
———— [See ScuppEr (Samuel H.).] 
Cotx (F. R.). [See Duzer (M. C. van.).] 
Coins (C. W.) and Hoop (Clifford E.). Life-history Eubiomyta calosomae, 
a Tachinid Parasite of Calosoma beetles. 
{Journ. Agric. Research, Vol. XVIII, Washington, 1920. ] 
The Author. 
Comstock (Dr. J. A.). An Introduction to Entomology. 
——_——— [See Watson (Frank E.).] 
Crawrorp (H.G.). The European Corn-Borer. 
[Scientific Agric., Ottawa, March 1921. ] 
CrippLeE (Norman). Locust Control in the Prairie Provinces. 
[Dom. Canad. Dept. Agric., Ottawa, Cire. 13, 1920. ] 
———— [See Gisson (Arth.).] 
———— [See Srricxranp (EH. H.).] 
Cross (H. E.). A Note on the Treatment of Surra in Camels by Intravenous 
Injections of Tartar Emetic. 
[ Agric. Res. Ins. Pusa, Bull. 25, 1920. 
———— The Course that Camel Surra runs in Ponies, Buffaloes, and other 
Animals. 
[ Agric. Res. Ins. Pusa, Bull. 99, Caleutta, 1921.] 
———— The Course that Surra runs in Camels when naturally contracted 
and when artificially inoculated. 
[ Agric. Res. Ins. Pusa, Bull. 98, Calcutta, 1921.] 
Cusor (J.). Noctuelles et Géométres dEurope. Iconographie compléte 
de toutes les Espéces européenes. Parts 74-93 completed. 
Purchased. 
Curti (M. von). Revision der palaarktischen Arten der Gattung Cetonia 
s. str. (Col.). 
[Ent. Mitt. Deut. Ent. Mus., Vol. II, Berlin-Dahlem, 1913. ] 
CusHMAN (R. A.) and Rouwer (S. A.). The North American Ichneumon- 
flies of the tribe Acoenitini. 
[Proc. U. S. Nat. Mus., No. 2,320, Vol. LVII, Washington, 1920.] 
