Plate IIIA 



Fie. 1. Flowers of the swamp milkweed {Asclepias iiicarnata) at Station I, J. These were the 

 favoiite haunts of manv flower-visiting- insects. (Photog-raph, T. L. Hankinson.) 









■-S^^>-fC' -> 



-*•"•>. 



Fig-. 2. Crawfish chimney at Station I, </, Charleston. 111. Probably fornie.l by Cumbariis gracilis 

 or aiogenes. (Photograph by T. L. Hankinson.) 



