IRVING 



to group differences in regard to previous cold experience, I 

 would not wish to say atthis time. The exposure temperatures were 

 from -5° C and -10 C. 



EAGAN: Is it possible that whites who worked indoors could 

 afford more expensive clothing? 



MILLER; No, not unless you want to insult all the members of 

 the Arctic Reseaixsh Lab. 



HART: Were the hands exposed in open air? 



MILLER: Yes. 



MORRISON; Is the larger hand volume characteristic of the 

 Eskimos? 



MILLER: No, it is not significantly larger. There is just a very 

 slight difference. 



MORRISON: It is 10% which would seem to be an appreciable 

 amount. 



MILLER: But it does not appear to be statistically important. 

 It is a relatively small group. 



HUDSON; Are there any changes in blood flow? 



MILLER: I did not make any determinations of blood flow, but 

 other people have correlated blood flow changes with adaptation in 

 Eskimos by cooling them in water. This is, more or less, a compli- 

 mentary study, using air cooling. 



EAGAN: I would like to ask Dr. Irving one thing: your concept 

 of peripheral heterothermy, I believe, presupposes an improvement 

 in sensitivity to all the general factors in the environment at the 

 same or at a lower temperature. Does this also include the ability 

 to cool more and yet maintain sensitivity to environment? 



156 



