CAMBRIDGE ENTOMOLOGICAL CLUB. 



OFFICERS FOR 1918. 



President W. M. Wheeler. 



Vice-president S. W. Denton. 



Secretary ' A. C. Kinsey. 



Treasurer H. A,. Preston. 



Executive Committee 



A. F. Burgess, F. W. Dodge, C. A. Frost. 



EDITORIAL BOARD OF PSYCHE. 



EDITOR-IN-CHIEF. 



C. T. Brues, Harvard University. 



assistant editor. 

 R. W. Glaser, Harvard University. 

 associate editors. 

 C. W. Johnson, V. L. Kellogg, 



Boston Society of Natural History. Stanford University . 



A. L. Melander, a. p. Morse, 



Washington State College. Wellesley College. 



J. H. Emerton, J. G. Needham, 



Boston, Mass. Cornell University. 



W. M. Wheeler, 



Harvard University. 



Psyche is published bi-monthly, the issues appearing in February, April, June, August, 

 October and December. Subscription price, per year, payable in advance: $1.50 to subscribers 

 in the United States, Canada or Mexico ; foreign postage 16 cents extra. Single copies, 35 cents. 



Cheques and remittances should be addressed to Treasurer, Cambridge Entomological Clnb, 

 Bussey Institution, Forest Hills, Boston, Mass. 



Orders for back volumes, missing numbers, notices of change of address, etc., should be sent 

 to Dr. R. W. Glaser, Bussey Institution, Forest Hills, Boston, Mass. 



important notice to contributors. 



Manuscripts intended for publication, books intended for review, and other editorial 

 matter should be addressed to Professor C. T. Brubs, Bussey Institution, Forest Hills, 

 Boston, Mass. 



Authors contributing articles over 8 printed pages in length will be required to bear a part 

 of the extra expense for additional pages. This expense_ will be that of typesetting only, which 

 is about $1.20 per page. The actual cost of preparing cuts for all illustrations must be 

 borne by contributors; the expense for full page plates from line drawings is approximately 

 83.60 each, and for full page half-tones 84.80 each, smaller sizes in proportion. 



AUTHOR'S SEPARATES. 



Reprints of articles may be secured by authors at the following rates: 



length 50 Copies, 50 Copies, 100 Copies, 100 Copies, 



of Article. without cover. with cover. without cover. with cover. 



1 to 4 pages $3.00 $7.00 $5.00 $9.00 



5 to 8 pages 7.00 11.00 11.60 15.60 



9 to 12 pages 8..50 12.50 14.10 18.00 



13 to 16 pages 9.50 13.50 15.80 19.80 



17 to 32 pages 18.00 22.00 35.00 39.00 



Entered as second-class mail matter at the Post Office at Boston, Mass. Acceptance for 

 mailing at special rate of postage provided for in section 1103, Act of October 3, 1917, author- 

 ized on June 29, 1918. 



