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VIII. Bill of Mortality for Chefter/(?r the Tear 177 By 
J. Haygartli, M. D» F, R. S. 
Redde, Feb. a, f | 'hAT Chefter is healthy to a very re- 
markable degree, is hill more clearly 
evinced from the following tables, than in the regifter 
oflahyear. In 1772, one half of the mhabitants ap- 
peared to arrive at 2 o years of age ; a fa61 which feemed 
very furpriling when compared with the proportional 
mortality in other towns, both of a larger and lefs lize* 
But, according to this year’s regifter, one half have lived 
to be 36 years old. In 177 2,; one in 1 5 and 3“4ths had 
lived to above 80, and this year i in 13. Thefe are very 
nncommon inftances of longevity for fo large a propor- 
tion of the inhabitants. The inhabitants of St. Michaefs 
pariflr were numbered to be 6 1 8 , of whom this year ten 
have died; that is, a lefs proportion than i in If 
the inhabitants of the whole city were numbered with 
the fame accuracy as thofe of St. Michael’s, many im- 
portant conclufions, both medical and political, might 
with certainty be deduced from the bill of mortality. 
The regifter of burials in the nine pariflies are kept fepa- 
rate; hence, by comparing the number of inhabitants 
in each parilh with the burials in each, for a period of 
years, we may, on the molt evident foundation, difcern 
- I which 
