

\^i.Vi.-"i>;.U, 



PSYCHE, 





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A. JOXJK.Kr.A.L OF ElSTTOls^OLOG'Y. 



[Established in 1S74.] 

 EDITED BY 



B: PicKMAx Mann, Washington, D. C; G: Dimmock, Cambridge, A/ass.; 

 Ai.BEiiT J: Cook, Lansing, Mich.; Stephen Alfred Forbes, N^ormal, 

 III.; Joseph Albert Lintner, Albany, N. 7! ; Francis Hunting- 

 ton Snow, Laiorence, Kansas; W : Trelease, Madison, Wise. 



Vol. 4. Nos. 132-134. 



April-June 1S85. 



CONTENTS: 



Advertisements 270 



The Insects of Betula in North America — Anna Katherina Dimmock . 271-286 

 New Solvent of Chitin ............ 286 



Herbert Knowles Morrison 2S7 



Proceedings of Societies — Linnean Society of New South Wales . . . 2S7-288 



Observations on Decapitated Silkworm Moths 288 



Bibliographical Record, no. 37SS-38S4 289-296 



Entomological Items 297-300 



Published by the 



CAMBRIDGE ENTOMOLOGICAL CLUB, 



Cambridge, Mass., U. S. A. 

 YEARLY SUBSCRIPTIONS, $2. VOLUME, $5. MONTHLY NUMEROS, 20 c. 



fEntered as second class mail matter.] 



