[ 99 
number of deaths. What the deficiencies arifing 
from hence are, cannot be determined. Suppofe them 
equivalent to 6000 every year in the births, and 6000 
in the burials. This would make an addition of 20 
times 6000 or 120,000 to the laft number, and the 
whole number of inhabitants would be 651,580. 
If the burials are deficient only two thirds of this 
number, or 4000, and the births the whole of it j 
20 multiplied by 6000, mufl be added to 314,290 
on account of the defedls in the bhths : and, fince 
the excefs of the burials above the births will then 
be only 5,246 j 30 multiplied by 5,246 or 157,380, 
will be the number to be added on this account ; 
and the furn, or number of inhabitants, will be 
591.580. But if, on the contrary, the burials are 
deficient 6000, and the births only 4000 ; 80,000 
mufl: be added to 314,290, on account of the defi- 
ciencies in the births j and 30 multiplied by 9,246, 
on account of the excefs of the burials above the 
births, and the whole number of inhabitants will be 
671.580. 
Every fuppofition in thefe calculations feems to 
me too high. Emigrants from London are, in par- 
ticular, allowed the fame expeSiation of continuance in 
London with thofe who are born in it, or who come 
to it in the firmed: part of life, and never afterwards 
leave it j whereas it is not credible that the former 
expedfation fliould be fo much as half the latter. 
But I have a further reafon for thinking that this 
calculation gives too high numbers, which has with 
me irrefiftible weight. It has been feen that the 
O 
number of inhabitants comes out lefs on the fuppo- 
fition, that the defedls in the chriftenings are greater 
O 2 than 
