;i6 



THE POPULAR SCIENCE MONTHLY. 



cation, and ignore the bilious temperament, we have in this class only 

 the nervous, while in the first group we have both the sanguine and 

 lymphatic, with no means of separating them, except that the na- 

 tional characteristic shows an excess of the sanguine over the lym- 

 phatic, probably about the ratio of three to one. 



TABLE II. Vital Capacity as indicated by Ratio of Chest-Expansion of oyer Three 

 Inches for all Heights to Complexion. Based upon the examination of 190,621 

 American-born white men accepted; expressed in ratios of 1,000. 



Table II. shows the relation of chest-expansion to complexion. 

 The range of chest-movement, while it cannot be deemed an abso- 

 lute measure of vitality, which must be regarded rather as the sum of 

 organic and functional action than the degree of perfection in any 

 one set of organs, yet may be fairly assumed to bear a close rela- 

 tion to the general vigor of the system that defines the quality of 

 vital activity. A free chest-expansion implies a large consumption of 

 oxygen, a corresponding degree of force and activity in the. circula- 

 tion of the blood, and this, in its turn, calls for a large demand for 

 food, with a proportional muscular vigor. In the table, a chest-expan- 

 sion of over three inches is taken as the basis of comparison, for the 

 reason that, at an expansion less than this, men of impaired strength 

 may be included. It is but necessary to glance at the table in order 

 to understand all that is implied by it that size and muscular vigor 

 of the sanguine and lymphatic greatly exceed these conditions in the 



nervous. 



TABLE III. Ratio of Diseases to Complexion. 



Blue or gray eyes ; light hair. 



3 This division includes abscess and obesity only. 



2 Black or hazel eyes ; dark hair. 



