CONTROL OF PERIPHERAL CIRCULATION 
lo 20 
MINUTES 
Figure 12. Forearm blood flow before and during body heating. 
Control forearm, O ; atropinized forearm, • ; current as in Figure 
11, o . Immediately before observations commenced 0.3 mg atropine 
sulphate was given. The open rectangle represents the period of 
heating. (After Roddie, Shepherd, and Whelan, J. Physiol. (Lond.). 
136:489, 1957). 
Figure 13. Experimental setup used to sample tissue fluid 
from the subcutaneous tissue space in the forearm. (After Fox and 
HUton, J. Physiol. (Lond.). 142:219, 1958). 
127 
