EXPLANATION OF TABLES. 



General Outlines. — The tables of this volume are twenty-three in number, and 

 admit of division into two classes. 



Tables No. 1 to No. 15, inclusive, treat of certain physical qualities of man, with- 

 out relation to disease, and may therefore be properly termed the Anthropological 

 Series. The constnaction of these tables is nearly uniform ; each one being divided into 

 eight subordinate tables, corresponding to the eight degrees into which the predomi- 

 nating quality of stature is divided. They are to be read throughout across the chuhle 

 page. 



Tables No. 16 to No. 23, inclusive, treat of disease and its relation to the physical 

 qualities of man; to occupation and to locality; and these form the Pathological 

 Series. 



It must be borne in mind that the number of men represented as furnished by a 

 district, a State, or as being of foreign birth, does not, in any instance, correspond to 

 the actual total number of either of these classes. The total number of men in any 

 table is formed by the aggregation of cases whose details were found to be sufficiently 

 complete for the purpose in view. 



TABLE No. 1. 



Material.— The men whose examination furnished the materials of this table 

 were white natives of the United States. Their total number was 315,620; and they 

 belonged to the classes of recruits, substitutes, drafted men, and enrolled men;^ and 

 their number includes those rejected as well as those found fit for military service, so 

 that they may be said to represent the adult male population without selection. 



Purpose. — The purpose of the table is to illustrate the relation borne to stature 

 by the circumference and mobility of the chest ; and as the men are grouped accord- 

 ing to the congi-essional districts in which they were enrolled, any connection that may 

 exist between stature and locality is thereby made evident. 



Construction. — The predominating quality is height, which is placed at the head 

 of the table throughout. It is divided into the following eight degrees : 



Under 61 inches. 

 61 inches, and under 63 inches. 

 63 inches, and under 65 inches. 



' For a defiuitiou of thcso terms see ante, pp. 3, 4. 



