EXPLANATION OF TABLES. XXV 



CoNSTEUCTiON. — The list of diseases extends through four pages, and is repeated 

 five times in Table No. 21, and seven times in Table No. 22, thus making six tables 

 in the fonner and eight in the latter. The tables are to be followed across the double 

 page, excepting in the second series in Table No. 22, beginning at page 584 and end- 

 ing at page 587, which is to be followed down the single page. The column headed 

 by a State is subdivided according to the number of congressional districts the State 

 contained, and to these is added a column for the totals found by the addition of the 

 numbers of the districts. In Table No. 21, each disti-ict-column shows the number of 

 men rejected in that district for each disease. By following a State or district tlu-ough 

 the list of diseases, the comparative prevalence of disease may be observed. The cor- 

 responding column in Table No. 22 shows the ratios these numbers bear to the whole 

 number of men examined, as announced at the top of the column. 



Totals — The horizontal lines of totals of these tables are of three kinds : the 

 "Total" in Table No. 21 shows the number of men in each congressional district and 

 in the entire State who were rejected under a subdivision of diseases; the "Grand 

 totals" exhibit similar results for a class of diseases; and the "Total exempted for all 

 diseases," which is found at the foot of each successive list of diseases, shows the num- 

 ber of men rejected in each district and in the State for all diseases. 



A vertical column of totals accompanies each State, and shows the total number 

 of men rejected in the State for each disease; then the total nimiber rejected in the 

 State under each subdivision and under each class of diseases ; and, finally, on the last 

 page of the series, the number rejected for all diseases. On the extreme right of the 

 pages of the last series (commencing at page 567) is the column of " Grand total." 

 This exhibits the total nimiber of men (irrespective of States or districts) rejected for 

 each disease ; for each subdivision of diseases ; for each class of diseases ; and, finally, 

 at the foot of the last page of the table (page 573) the number rejected for all diseases. 



Ratios. — The ratios are to be found exclusively in Table No. 22. They show in 

 every instance the relation of the number of men rejected for disease to the whole 

 number of men examined, as announced at the top of each column. 



The number of men rejected for a disease, or for a subdivision or class of diseases, 

 in any congressional district or State, being first ascertained in Table No. 21, a refer- 

 ence to the precisely corresponding place in Table No. 22 will exliibit its ratio. 



Example. — On page 52 fi it will be seen that, in the State of Maine, for example, 

 138 men were rejected for chronic rheumatism. On page 576 of Table No. 22 the 

 ratio this number bears to the whole number of men exanained in the State of Maine 

 is seen to be 6.739 in the thousand. The congressional districts furnished these rejected 

 men in the following proportions : 



First consrressional district 57 



Second concessional district l<Sf ,, . ^ , , « 



^, . , ".,,.. „, ' Keiected on account oi 



ilurd congressional district. 21 > " , . , .. 



• , ° . , 1. . „„i chrome rheumatism. 



Lourth congressional district . . 2.6 



Fifth congressional district 19 



, ' Keiectet 



) 



138 



