CAMBRIDGE ENTOMOLOGICAL CLUB 
A regular meeting of the Club is held on the second Tuesday of 
each month October through May at 8:00 p. m. in Room B-455, 
Biological Laboratories, Divinity Ave., Cambridge. Entomologists 
visiting Boston are cordially invited to attend. 
BACK VOLUMES OF PSYCHE 
The Cambridge Entomological Club is able to offer for sale the 
following volumes of Psyche. 
Volumes 3, 4, 5, 6 , 7, 8 , each covering a period of three years. 
$ 8.00 each. 
Volumes 10, 14, 17 to 26, each covering a single year, $2.00 each. 
Volumes 27 to 53, each covering a single year, $2.50. 
Volumes 54 to 65, each covering a single year, $3.00. 
Volume 66 , covering a single year, $ 5 . 00 . 
Some other volumes, lacking certain issues, are also available 
(information upon request). 
Orders for 2 or more volumes subject to a discount of 10 %. 
Orders for 10 or more volumes subject to a discount of 20 %. 
All orders should be addressed to 
F. M. Carpenter, Editor of Psyche, 
Biological Laboratories, 
Harvard University, 
Cambridge, Mass. 
