Exchange Column.
Psyche 27:21-22, 1920.

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Exchange Column
EXCHANGE COLUMN.
Notices not to exceed four lines in length concerning exchanges desired of speci- mens or entomological literature will be inserted free for subscribers, to be run as long as may be deemed advisable by the editors. Cynipidse,-galls or the bred makers,-of the world desired for exchange or pur- chase. Will determine North American material. Address: Alfred C. Kinsey, Bussey Institution, Forest Hills, Mass.
Wanted: Insects of any order from ant nests, with specimens of the host ants, from any part of the world; also Cremastochilinse of the world. Will give cash or Coleoptera, Hymenoptera and Diptera from the United States.-Wm. M. Mann, U. S. National Museum, Washington, D. C. Wanted: To exchange, or purchase for cash, specimens of the Genus Apantesis from any locality. Also to purchase rare Catoca1se.-Samuel E. Cassino, Salem, Mass.
Wanted for cash: Lowest representatives of all families of insects, preserved in fluid.+. C. Crampton, Amherst, Mass.
Wanted: Syrphidse (Flower-flies) from all parts of the world. Exchanges solicited. Will determine on the usual conditions.-C. L. Metcalf, Ohio State University, Columbus, Ohio.
Largest Expansmne each c? and 9 Lepidoptera wanted for transfer purposes. Those not good enough for collections will do. Will buy, or exchange for local
Lepidoptera, etc.-C. V. Blackburn, IS Pine St., Stoneham, Mass. Butterflies of Japan and Formosa, will be exchanged by S. Satake, 48 Aoyarna- minamimachi 5-chome, Tokyo, Japan.
For Sale: Psyche, complete set, $40.
Volumes 8 to 20, newly bound in 11
volumes, red half calf, with black cloth sides; also Ann. Ent. Soc. Amer., com- plete, $12. Volumes 1 to 6, newly bound in black half calf, cloth sides.-A. C Hansen, 945 Margate Ter., Chicago.
For sale, or exchange for entomological items not in my library-American Entomologist, complete; Dyar, List of N. A. Lepidoptera; Redi, Experiments, circa Generationem Insectorum, 1686; many others.-J. E. Hallinen, Cooperton, Okla.
Pu&e 27:21-22 (1920). hup ttpsychu einclub orgt27/27-021.htd



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147.
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