[ lOI ] 
annual deficiency equal to 4,900 fubtrafled from 
io,8co, or 53900 in the births. Were the births a 
third part too little, and the burials alfo a third part 
too little, the true number of births., burials^ and of 
children clfing under 10, would be 20,933 30,666, 
and 14,400 ; and, therefore, the number that would 
live to 10 years of age would be 6,533 ^^>93 3 » 
or 5 of 16 as before. Were the births a third 
part, and the burials fo mueh as two-fifths wrong, 
the number of births^ burials^ and children dying un- 
der 10 would be 20,933 32,200 and 15,120; 
and, therefore, the number that would live to 10 
would be 5,813 out of 20,933, or 5 out of 18 
Were the births a 3d part wrong, and the burials but 
a 6th, the foregoing numbers would be 20,933 
26,833 12,600; and, therefore, the number 
that would live to lo would be 8,333 
20,933, or 5 out of 12.56: and this proportion 
feerns as low as is confiftent with any degree of 
probability. It is fomewhat lefs than the propor- 
tion in Mr. Simpfon's Table of London Ohjerva- 
tionsy and near one halj lefs than the proportion 
in the Table of Obfervations for Breflav;, where it 
appears that above 9 of 16 live to be 10, and that 
one halfXivt to be 1 6. The deficiencies, therefore, in 
the births cannot be much lefs than double thofe in 
xhQ burials^ ‘y and the leaf!: numbers I have given 
* One obvious reafon of this fact is, that none of the births 
zman<r jeivsy ^wkerSy Papijis, and the three denominations of 
Difjenters are included in the bills, whereas ?nany of their burials 
are. It is further to be attended to, that the abortive and ftill- 
born, amounting to about 6co annually, are included in the 
burials, but never in the births. If vve add thefe to the chriften- 
mufl, 
