[ ”4 3 
medium of births, gives 29.3 ij, or the expchfaiion of 
a child juft born, fuppofing the burials 2201, the 
number of births and of inhabitants remaining the 
fame j and the true expeBation of life muft be fome- 
vvhere near the mean between 49.89 and 29.35. 
Again : A 50th part of the inhabitants of Madeira, 
it appears, die annually. In London, I have fliewn, 
that above twice this proportion dies annually. In 
fmaller towns a fmaller proportion dies, and the 
births alfo come nearer to the burials. At Breflaw, 
I have obferved, that, by Dr. Halley’s Table, 
a 28th part dies annually j and the annual me- 
dium of births, for a complete century, from 
1633 to 1734, has been 1089 j of burials 1256, 
* At Norwich, the annual medium of births, dif- 
fenters included, for four years, from 1751 to 1754, 
was 1150J of burials 1214. And as the number of 
inhabitants was at that time 36,169 (fee pag. 103), 
a 30th part of the inhabitants died annually. In ge- 
neral, there feems reafon to think that in towns 
{allowing for particular advantages of fituation, trade, 
police, cleanlinefs, and opennefs, which fome towns 
may have), the excefs of the burials above the births 
and the annual deaths are more or lefs as the towns 
are greater or fmaller. In London itfelf, about 1 60 
years ago, when it was fcarcely a fourth part of its pre- 
fent bulk, the births were nearly equal to the burials. 
Vid. Dr. Short’s Comparative HiJIory, p. 63. And the 
Abridgment of the Philofophical Tranfadiions, vol. VII. part iv. 
p. 46. During the five years on which Dr. Halley has founded 
his Table, or from 1687 to 1691, the births happened a little to 
exceed the buri.ils. 
But 
