of the United States and Territories of North America. 835 
In the observations which were before advanced, relative to 
the maximum increments from 1800 to 1810, a great degree of 
regularity was observed to prevail among "them ; and it was re- 
marked, that both males and females could be separated into two 
classes, and that the greatest increments of each state fell in one 
or other of them. These classes were the third and fifth. The 
same principle has been attempted to be traced in the greatest 
increments contained in the table for 1810 and 1820, but not 
with the same success, two exceptions being found to it in the 
males, and five among the females. Nevertheless, the law be- 
fore observed will be found to hold good, with respect to the 
males, in twelve states, in the class of 16 and under 26 ; and in 
eleven states in the class of 45 and upwards. Of the females, 
four states only will be found in the formed of these classes, but 
in the latter sixteen ; — another evidence in favour of the suppo- 
rt is my intention to offer a few remarks in another paper), the following Tables 
are added. To enable the comparison to be made with greater ease, the Swedish 
returns have been thrown into five classes, corresponding, as nearly.as circumstances 
will allow, with the American divisions. It is a matter of regret to be obliged to 
depart, in an inquiry of this kind, from a classification of ages, so truly philosophical 
as that which has been matured by Wargentin, and the other enlightened mem- 
bers of the Tabellvarket , or Board of Population, to assimilate it to one less per- 
fect and useful. Time, however, ihay do that for the American returns which it 
has done for the Swedish. Rome was not built in a day. 
Rates of Increase of the Swedish Population. 
Periods. 
Males. 
Females. 
Under 
10 to 
15 to 
25 to 
45 and 
Under 
10 to 
I 15 to 
25 to 
45 and 
10. 
15. 
25. 
45. 
upwards. 
10. 
15. 
25. 
45. 
upwards. 
1757 I 
to C 
1760,) 
+ 4,1 
+ 6.0 
— 0.2 
+ 0.4 
+ 0.0 
+ 4.1 
+ 4.7 
+ 0.1 
+ 2.7 
— 0.5 
, 1760 ) 
to l 
1763, ) 
+ 0.3 
+ 4.3 
+ 7.6 
+ 0.6 
+ 2.9 
+ 0.3 
+ 7.1 
+ 4.8 
+ 3.7 
+ 0.9 
1763 ) 
* • 
to l 
1800,) 
+ 27.2 
+ 21.9 
+ 33.9 
+ 31.7 
+ 40.4 
+ 26.3 
+ 19,8 
+ 32.1 
+ 29.4 
+ 32.0 
1800 ) 
to V 
1805, ) 
+ 3.4 
+ 9.5 
+ 3.4 
+ 3.7 
+ 4.6 
+ 4.1 
+ 9.9 
+ 2.7 
+ 3.2 
+ 5.0 
