FOR SALE 
The Ants of North America, by Professor Wm. S. 
Creighton. Published in April, 1950, as volume 104 of the 
Bulletin of the Museum of Comparative Zoology, with 585 
pages and 57 plates. Price $10.00 (postpaid). Send orders 
to Museum of Comparative Zoology, Harvard College, 
Cambridge, Mass. 
BLACK STEEL INSECT PINS 
Trade Mark “Elephant”, the ideal black insect pin. Trade 
Mark “Imperial”, formerly Czechoslovakia. Both types in 
sizes No. 000-7. Also Minuten Nadeln. Request samples 
and prices from the manufacturer: Emil Arlt, Spezial- 
NADELFABRIK, SALZBURG, 2, P.O. BOX 76, AUSTRIA. 
Used Insect Boxes For Sale at the Museum of Compara- 
tive Zoology, Cambridge 38, Mass. Lot 1 : 196 over-sized 
Schmitts or Schmitt-type boxes in 7 “cans” (28 boxes in 
each can, in 2 columns) the boxes very well made and in 
good used condition, all of the same type, and measuring 
approx. 15 x 12 x 2% in. outside and approx. 13% x 10% 
in. inside; at $100 for 28 boxes with can, or $675 for entire 
lot with cans, “as is” (a catch is broken on 1 box) ; prefer- 
ence will be given to a purchaser of the entire lot who can 
examine the boxes and pick them up at the museum ; pack- 
ing and shipment, if necessary, will be at buyer’s expense; 
terms cash down. Address inquiries to P. J. Darlington, 
Jr., at the above address. 
