4o Dr. white’s Obfervations on the 
tions fur la Population de la France. He found, by very labo- 
rious calculations, that the number of inhabitants may be 
known by the births, the latter being to the former as nearly 
i to 27. 
Bv an account given into the Houfe of Commons in March 
1781, the number of houfes in York fubjecd to the new houfe- 
tax was 2285 : if to thofe be added fuch as were too fmall to 
come under the tax, which may probably amount to one-third 
more, the total of the houfes in York will be about 3000. 
This number multiplied by 4I, which is nearly the medium of 
people in a houfe, gives 12,750 for the number of inhabitants. 
By thefecond rule we have 12,798 for the number of inha- 
tants, which is the refult of 474, the average annual births, 
multiplied by 27. 
The remarkable coincidence of the above methods of calcu- 
lation makes it very probable, that if we eftimate the number 
of inhabitants at 12,800, we '(ball not be far from the truth. 
However this may be as to the exafl number of inhabitants, 
it affects not the principal end of the prefent inquiry, which 
is to fhew how we are improved in population and healthfulnefs 
within 40 years pad:. 
In order to prove this, we mud 'find the number of inhabi- 
tants in the year 1735, from tab. 1. We there find the ave- 
rage annual births to be 400 ; this multiplied by 27 gives 
10,800 for the number at that time. This number divided 
■by the average annual deaths 498, gives the proportion of 
deaths 1 in 21 5. Such was the date of this city as to morta- 
lity 46 years ago. 
Very different from this is our prefent fituation, the propor- 
tion of deaths being now decreafed to 1 in 28^, which is the 
quotient of 12,800, the number of inhabitants divided by 453, 
‘ • 2 the 
