File:Headley, A. E. 1943. Population studies of two species of ants (10.1093@aesa@36.4.743).pdf

Summary
Headley, A. E. 1943. Population studies of two species of ants, Leptothorax longispinosus Roger and Leptothorax curvispinosus Mayr. Annals of the Entomological Society of America 36: 743-753.