LIM, T. P. K. 
DR. MINARD: I want to clarify one point. When I spoke of Dr. 
Benzinger's work being in no disagreement with Dr. Lim's, I was 
referring to his recent work on the cold side; but with reference to 
what he has observed in the control of sweating on the warm side, 
there is this difference: he regards the central temperature as the 
only controlling factor in that sweat rate is independent of skin 
temperature. 
DR. HENSEL: This is quite possible, but in the unanesthetized 
condition, the peripheral mechanism may be quite different. 
DR. RODDIE: I think that we have quite good evidence that there 
is a peripheral element looking after both heat and cold. People like 
Kirschlich and Cooper ha ve shown radiant heat on one extremity will 
cause a vasodilation in the opposite extremity within several sec- 
onds; and this was abolished if they cut the sympathetic nerves 
which were supplying the radiated area. With respect to cooling, I 
think most people, if they cool a subject rapidly, find that the shiv- 
ering commences very soon, and at a time when esophageal temper- 
ature, which is about as close to a hypothalamic as one can get in 
man, is actually elevated. 
DR. LIM: Can you get a peripheral mechanism? 
DR. RODDIE: The peripheral mechanism is quite strong. 
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