164 



BIOLOGY OF DEATH 



It will be seen tliat these ratios of preventaMlity are 

 not all 100 per cent. They are not the wild overstate- 

 ments of the propagandist. But they do, represent, if 

 they could be realized, substantial reductions from exist- 

 ing mortality rates. 



TABLE 16 b 



Complete expectations of life as based upon the two assumptions that deaths 

 are and are not prevented according to the ratios given in Table 16a 



On the basis of the mortality experience of the Regis- 

 tration Area for 11 years (1900-1910) Forsyth calculated 

 mortality tables on the assumption that the ratios of 

 preventability of Table 16a were actually in fuU opera- 

 tion. The results, so far as concerns expectation of life, 

 are set forth in Table 16b. 



