M Mr Harvey on the Increase of the Population 
and placed in a separate column. This, it may be presumed, 
was done for the purpose of shewing the power which the coun- 
try possessed, in this very important class of persons ; consisting, 
as it does, of young men in the prime of youth, and ready for 
the service of the state in almost every form. 
That unfortunate part of the American community, the 
slaves, which in the former enumerations had been thrown into 
one mass, without any distinction of age or sex ; in this census 
were divided into classes, embracing both these particulars. 
Each sex was separated into four classes, of the following ages : 
First , All those under fourteen years of age. 
Secondly, All those of fourteen, and under twenty-six. 
Thirdly , All those of twenty-six, and under forty-five. 
Fourthly , All those of forty-five, and upwards. 
The classes relating to the ages of the slave population, it is 
to be regretted, do not correspond with those of the free popu- 
lation ; but they agree with another numerous class of persons 
in the United States, called free coloured persons,” the divi- 
sions of whose ages correspond with those of the slaves. 
Another interesting and valuable addition to this census, is an 
account of the number of persons engaged in agriculture, com- 
merce and manufactures, in each state and territory, and from 
which many interesting particulars may be deduced, respecting 
the comparative wealth, commercial activity, and internal re- 
sources of the different provinces. These additions to the ob- 
jects embraced in the antecedent surveys, give room to hope, 
that succeeding enumerations of the American people will still 
better fulfil the objects which the cultivators of statistics have in 
view. Much remains yet to be done respecting the classification 
of the ages, and the introduction of such particulars as are cal- 
culated, from their nature, to throw a light on the great objects 
of the science. It is difficult, indeed, to conceive, to what cause 
the present division of the ages owe their origin. They certainly 
do not accord with such a classification, as an enlightened philo- 
sophy would suggest. The divisions ought at least to have been 
into classes of tens, above twenty year§ of age, and into classes 
of fives below the same age. Such a classification would have 
afforded the elements of much important information. If, in- 
deed, the divisions could have been made into classes of fives, 
from a period of birth to the close of life, similar to the enlight-r 
