A N D D E A T H. 497 



mortality of mankind. To make complete tables 

 of this kind, it is necefTary to fcrutinize the pa- 

 ri fh-regi ft e is, not only of London, Paris, &c. 

 where there is a perpetual ingrefs of ftrangers, 

 and egrefs of natives, but likewife thofe of the 

 country, that, by comparing the refults of both, 

 general conchifions may be formed. M. Dupre 

 de St Maur, a member of the French Academy, 

 has executed this plan upon twelve parifhes in 

 the country of France, and three in Paris. Ha- 

 ving obtained his permifTion to publifh his tables, 

 I do it the more chearfully, as they are the only 

 calculations by which the probability of human 

 life, in general, can be afcertained v/ith any de- 

 gree of certainty. 



Vol. II. I i YEARS 



