BACK VOLUMES OF PSYCHE 
The Cambridge Entomological Club is able to offer 
for sale the following volumes of Psyche. Those not men- 
tioned are entirely out of print. 
Volumes 2, 3, 4, 5, 6, 7, 8, 9, 10; each covering a period of 
three years, $5.00 each. 
Volumes 12, 14, 17, each covering a single year, $1.00 each. 
Volumes 18, 19, 20, 21, 22, 23, 24, 25, 26, each covering a 
single year, $1.50 each. 
Volumes 27, 28, 29, 30, 31, 32, 33, 34, each covering a single 
year, $2.00. 
Orders for 2 or more volumes are subject to a discount of 
10 %. 
Orders for 10 or more volumes subject to a discount of 
20 %. 
A set of all the volumes available (29 in all) will be sold for 
$58.00. 
All orders should be addressed to 
F. M. CARPENTER, 
Associate Editor of Psyche, 
Bussey Institution 
Forest Hills, Boston, 30, Mass. 
