C 3 ,<5 ] 
thor could not do, for Reafons afligned in his Firft 
Trcatife, Page 38.) that in the Firft Divifion marked 
A. are born alive annually 3890 Children. 
B. . annually 19070 and 
C. — annually 5040. 
. . _ \ 
which is together annually 28000 Children. 
And, as it has been proved in his Firft Treatife, by 
what has been there obferved, in relation to Annu- 
ities for Life 5 that for every Child that is born, the 
whole Number of People is 3 5 times as many ; fo it 
will prove, that thefe Numbers being multiplied to- 
gether, it renders 980,000 Souls. 
But as it was impoflible for the Author (as has 
been hinted before) to get an exadl Account, from 
all Places, of the Births, Weddings, and Burials, 
(from which Two laft the Firft is to be cited and 
proved) he proceeds to give you the chief Obferva- 
tions he was able to obtain ; and believes that thefe, 
joined with thofe contained in his Firft Treatife, will- 
be a fufficient Proof to his general Calculations. 
Mr. Kerjfeboom then goes on, with giving an Ac- 
count how many People were buried in the City of 
L Dort every Year, from 1700 to 1739 inclusive, 
amounting, in 40 Years, to 2S977 Perfons ; which is 
annually, on an Average, 724. The Marriages are 
202 Couple annually, during the fame time, which 
fhould produce (according to the Author’s Calcula- 
tions in his Firft Treatife, Page 24.) 325 Children per 
100 Marriages, and confequently 6y6 Children per 
Annum ; but has found ir, on an Average, to be 
651. This City being a Sea-Port, and driving a 
large Trade to Scotland , and on the Rhine , and con- 
fequenrly 
