HART 



DEPTH ON GRADIENT 

 7o io ?0 60 80 100 



Figure 8. Typical temperature gradients through superficial layers of the swine 

 in air at several temperatures from February to August. Because of seasonal 

 changes in depth of gradient, the scale of the abcissa is observed temperature in 

 tissues/body temperature in G x 100. Data from Irving, 1956. 



216 



