100,000 

 90,000 

 80,000 

 70, 000 -I 

 60.000 



" Dn,w ^S^ ; ^^ 





X 



10 



AGE IN YEARS 

 ~20 30 ' 40~ 



50 



60 



70 



80 



90 



100 



Fig. 3. — Number of Survivors out of 100,000 male live births, from recent 

 life-tables for selected countries. 



10 20 30 40 50 60 70 

 Age at death in years 



90 100 



Fig. 4. — Frequency distribution of ages at death in a 



cohort starting with 100,000 live births, based on the 



mortality of white males: United States, 1939-41. 



