Page:Popular Science Monthly Volume 81.djvu/346

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340
THE POPULAR SCIENCE MONTHLY
 Institution Smokers Non-smokers Total
Amherst College 9 9 18
Drake University 2 9 11
Haverford College 4 17 21
Michigan Agricultural College 3 14 17
Northwestern College 12 5 17
Tulane University 7 14 21
U. S. Naval Academy 7 5 12
University of Colorado 5 7 12
University of Kansas 10 9 19
University of Montana 12 7 19
University of Pennsylvania 12 12 24
University of Tennessee 11 10 21
Western Maryland College 7 12 19
Yanktown College 8 9 17
——— ——— ———
109 139 248
 

Of the total number 44 per cent, are smokers and 56 per cent, are non-smokers. Of 213 students examined by Dr. Meylan at Columbia University 52 per cent, were smokers and 48 per cent, were nonsmokers.

From the following tables it will be observed that the two classes of men are of practically the same age and weight.

 
No. of Men  Combined Age Average Age
Smokers 103 2,164 years 21.01 years
Non-smokers 134 2,821 years 21.04 years
Fourteen institutions reporting.
 
No. of Men  Combined Weight Average Weight
Smokers 103  16,645 lbs.  161.5 lbs.
Non-smokers 134  21,579 lbs.  161.0 lbs.
Fourteen institutions reporting.
 

While the differences in age and in weight are very slight, it should be noted that they both are in favor of the smoker. This point will be considered later.

The following table shows the relation between smoking and lung capacity.

 
No. of
Men
Average
Weight
Average
Age
Average Lung
Capacity
Smokers 47 162.9 lbs. 21.06 years 286.3 cubic inches
Non-smokers 61 159.6 lbs. 20.88 years 308.9 cubic inches
Difference 3.3 lbs. .18 year 22.6 cubic inches
Six institutions reporting.
 

It will be observed that smokers of the same age as non-smokers and 3.3 pounds heavier have a lung capacity of 22.6 cubic inches (7.3 per cent.) smaller. Inasmuch as the smokers are heavier than the non--