118 



BIOLOGY OF DEATH 



group — ^namely deaths caused by breakdown of the cir- 

 culatory system, blood and blood-forming organs — ^we 

 note in Figure 28 a marked difference in the form of the 



5 



I 



^ 







CIRCULATOf?^ SYSTEM, BLOOD AND 



BLOOD- FORMING ORGANS // 



10 IS ZO £S 30 35 40 4S SO SS 60 65 10 73 80 65 90 9S lOt 



ABEL 



Fia. 28. — Diagram showing the specific death rate at each age from breakdown of the 

 circulatory system, blood and blood-forming organs (Group I). 



curve from what we have seen for the case of all causes 

 of death. In the first place, the specific force of mortal- 

 ity of this group of causes is relatively low in infancy and 



