92 



BIOLOGY OF DEATH 



that this difference is real and due to circumstances pecu- 

 liar to Eome. 



The general features of the diagram for the popu- 

 lation of Hispania and Lusitania (Figure 23) are similar 

 to those that we have seen, with the difference that the 

 expectation of life up to age 20 or 25 is not as bad as in 

 the city of Eome itself. Again the females show a lower 

 expectation practically throughout life than do the males. 



5 K> 15 20 25 X 35 4O 45 5O 



FIG. 24 Comparing the expectation of life of the population of the Roman provinces in 

 Africa with that of present day Americans. Plotted from MacdonelTs and Glover's data. 



The lines cross the modern American lines at about age 

 60 and from that point on these colonial Komans appar- 

 ently had a better expectation of life than the modern 

 American has. 



The Romano-African population diagram appears to 

 start at nearly the same point at birth as does the modern 

 American, and in general the differences up to age 35 

 are not substantially more marked from modern condi- 

 tions than they are in the seventeenth century Breslau 

 table. The striking thing, however, is that at about age 



