MORRISON 



HOUR OF DAY 



Figure 15. Summary of daily cycles in different species of bats: M, Molossus ; 

 P, Phyllostomus; A, Artibeus ; S. Stumira ; G, Glossophoga . 



104. 



102 



100 



98_ 



12 



HOUR OF DAY 



24 



Figure 16. Daily T response in four species of C ebus to illustrate conformity 

 of pattern. Points on mean curve (heavy) represent some 350 values. Data from 

 Dr. H. L. Ratcliffe, Penrose Research Laboratory. 



404 



