82 THE CHARTS VAKTOUS DISEASES. 



fact is probably owing the smallness of the ratios for men of certain heights ; as regards 

 age, however, the number examined in each division thereof was sufficiently large to 

 furnish trustworthy results. The indications of the nativity division of the chart are 

 of interest ; but where the numbers examined were very small, the ratios are perhaps 

 unduly magnified or diminished, as they undoubtedly would be, by the presence or 



absence of a single case. 



CHART XIX. 



DISEASES OF THE CUTANEOUS SYSTEM; 



The conformity of this class of diseases to the general rules laid down is marked, 

 and, as the ratio rejected was comparatively large, the indications are trustworthy, and 

 those of the nativity division are interesting. 



CHAET XX. 



CONDITIONS NOT NECESSARILY ASSOCIATED WITH DISEASE. 



The remarkable excess in prevalence of this class of conditions among the single, 

 the youngest and the oldest men, is owing to the fact that " Under-age," " Under-size," 

 and " Over-age " were necessarily included among other conditions, on account of which 

 men were rejected, and wdiich could not be classed as diseases proper. Of course, 

 " Under-size " was the cause of numerous rejections ; and the result is seen, in the 

 division "Height," among the shorter men; also, in the division "Nativity," among 

 the native Americans, many of the youth of the country who presented themselves 

 being rejected for this cause as well as for " Under-age." 



CHART XXI. 



LOCAL INJURIES. 



This chart is interesting when studied in connection with the " Calculus of prob- 

 abilities." It being the result of actual observation, its facts give a reliable ground- 

 work for such calculus. As might be expected, the older men were found more affected, 

 but not in a regularly increasing ratio ; and the condition of height enters into the ^con- 

 sideration, because the minimum of rejection was not furnished by either the tallest or 

 the shortest men. It may, however, be suggested that, as the effect of many injuries 

 is to lessen the stature, the shortest men, as a class, would of necessity furnish an undue 

 ratio. The veryregular increase of local injuries with increase of height beyond sixty- 

 five inches is noticeable. 



CHART XXII. 



DISEASE. 



This chart exhibits the ratios of rejection on account of all causes, and is submitted 

 without special comment, other than that it covers such as " Under-age," etc. The next 

 chart, however, in the preparation of which " Conditions not necessarily associated with 

 disease " have been carefully excluded, will, as regards disease proper, be of greater 

 interest. 



