Bui, 77, Bureau of Entomology, U. S, Dept. of Agriculture. 



Plate VI. 



Cages for Hibernation Experiments in Texas, 1906-7. 



Fig. 1.— Dallas, Tex., cage on flat, black-waxy land. Fig. 2.— Calvert, Tex., cage on slightlv 

 .sloping, sandy land in post-oak region. Fig. 3. — Victoria, Tex., cage on sandy-loam slope 

 between bottom and upland. (Original.) 



