SMOKING AND FOOTBALL MEN 341 



smokers by 3.3 pounds, their lung capacity should, from the standpoint 

 of averages, be correspondingly greater. The following computations 

 are based upon the weight and lung capacity of the non-smoker : 



Non-smoker's lung capacity at 159.6 pounds is 308.9 cubic inches. 

 Smoker's lung capacity at 162.9 pounds is 286.3 cubic inches. 

 Smoker's lung capacity at 162.9 pounds should be 315.3 cubic inches. 

 Smoker's loss in lung capacity is 29.6 cubic inches, or 9.4 per cent. 



In the item of lung capacity, it appears that the effects of smoking 

 are almost completely segregated from those of other factors. The 

 habit of smoking here stands strongly indicted. The evidence becomes 

 little less than proof conclusive when it is noted in the following table 

 that the smokers show a decided loss of lung capacity in each of the 

 six institutions reporting. 



Average Average Loss in 



Weight Lung Capacity Lung Capacity 



Lbs. Cu. In. Cu. In. 



Institution A. 



Non-smokers 161.8 289.1 



Smokers 167.4 284.3 



Smokers at 167.4 should have 299.1 14.8 



Institution B. 



Non-smokers 161.3 287 



Smokers 166.8 291 



Smokers at 166.8 should have 296.8 5.8 



Institution C. 



Non-smokers 159.7 357 



Smokers 156 336.6 



Smokers at 156 should have 348.9 12.3 



Institution D. 



Non-smokers 170.2 333.8 



Smokers 175.3 313.0 



Smokers at 175.3 should have 343.8 30.8 



Institution ~E. 



Non-smokers 149.3 296.7 



Smokers 152.5 264.3 



Smokers at 152.5 should have 303.0 38.7 



Institution F. 



Non-smokers 157.7 278 



Smokers 158.7 268.1 



Smokers at 158.7 should have 279.8 11-7 



The athletic directors of the various institutions were asked to 

 divide their men into the classes, fair, good, and very good. This 

 classification was to be based upon the ability of the men as all round 

 football players. The following table shows the distribution of the men 

 according to the rating of their coaches : 



