1975] Hermann, Baer Barlin — Venom Gland System 
73 
Literature Cited 
Blum, M. S. and H. R. Hermann. 
1969. The hymenopterous poison gland: Probable functions of the main 
glandular elements. J. Georgia Entomol. Soc. 4:23-28. 
Hermann, H. R. and M. S. Blum. 
1968. The hymenopterous poison apparatus. VI. Camponotus penn- 
sylvanicus (Hymenoptera : Formicidae). Psyche 75:216-227. 
