MILAN 



Statistical Treatment 



These data were analyzed in a single classification analysis of 

 variance. 



RESULTS 



Basal metabol ic rates. Average basal metabolic rates and 

 standard deviations were 47.6 ± 4.41 and 45.4 ± 4.91 kcal/m /hr 

 for the Eskimos and 42.7 ± 1.70 and 42.2 ±3.92 kcal/m /hr for 

 the Indians. The basal metabolic rates of the soldiers were not 

 measured. Lewis et al. (1961) have reported a mean value of 

 37.4 ± 3.66 kcal/m /hr for 349 measurements on 29 British men 

 with an average age of 29 years. This figure is close to the average 

 metabolism of the soldiers in the 35 Cbath. Each hour the Eskimos 

 produced about 8 to 10 kcal and the Indians about 5 kcal more than 

 the soldiers when surface area was used as the metabolic reference 

 standard. 



Calorimetric studies. A summary of the data showing the 

 manner in which the three groups are similar or differ, and the 

 level of significance attached to these differences is shown in 

 Table 2. It is of more than passing interest that although there 

 were no differences in the fall of rectal temperatures, the Eskimo 

 group, in general, produced and lost the greatest amount of heat 

 in the water baths at all temperatures. 



The relation between an index of "effective thermal conduct- 

 ivity" and the physiological temperature gradient across which the 

 energy is transferred is shown graphically for all subjects in 

 Figure 1. The relation between tissue insulation, actually the recip- 

 rocal of conductivity, and the temperature gradient is shown in 

 Figure 2. 



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