[ ] 
cannot be a true reprefentation of the probability of 
me. In the age between 20 and 30 there appears to 
die near three times the number, that die between 10 
and 20. For the numbers are as 2070 to 741 ; which 
cannot poffibly be from the natural decrements of 
life ; becaufe we generally fee, that people between 
20 and 30 are nearly as healthy and vigorous, as be- 
tween 10 and 20 ; but it muft neceffarily arife, from 
the great increafe of the number of the people at 
that age, by the acceffion of Grangers. And then 
on the contrary, above the age of 50, the numbers’ 
leem to reprefent the decrements of life flower, con- 
^ary to the natural courfe ; For the numbers of tlie 
dead after that age continually decreafe. From 40 
years of age to 50 they are 2604, but in the three 
Allowing decennial periods they are as 2045, 
that is, in the more healthy ages there are 
more burials, than in the more infirm and unhealthy; 
which is not to be accounted for without fuppofing’ 
that great numbers retire after the age of yo into the 
country. For after that time, as infirmities and dif- 
eafes greatly increafe, the burials ought at leaft not 
to be fewer, till the number of people is nearly ex- 
haufted. And indeed it is evident to common ob- 
fcrvation, that a great number in advanced age retire 
from the town; from which it mufl; follow, that the 
numbers of the dead cannot give a true reprefenta- 
tion of the probability of life. 
If, in the next place, we compare the numbers 
of the dead, in the feveral periods at Breflau, with 
thofe at London, we fhall plainly fee, that the former 
fliew the decrements of life in a natural and regular 
vvay, and free from the above difficulties and objec- 
tions. 
