230 BIOLOGY OF DEATH 



CONTROLLABLE CAUSES OF DEATH 



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I I I I I I I I I I I I I I I I I I I 



1900 01 02 03 04 05 06 07 08 09 lO II 12 13 14- 15 16 17 18 



VELAR 



Flo. 52. — Trend of death rates for four causes of death against which public health activities 

 have been particularly directed. 



In figure 52 are given the trends of the death-rates 

 for four diseases against which public health and sani- 

 tary activities have been particularly and vigorously 



