, 57,791,315
1890, 78,359,243
1900, 106,247,297

The estimate of the Superintendent is, therefore, six millions less than
according to the ratio from 1850 to 1860, and much less than from 1790
to 1860.

When we reflect that if, as densely settled as Massachusetts, our
population would exceed 513,000,000, or if numbering as many to the
square mile as England, our inhabitants would then be more than twelve
hundred millions, the estimate of 100,000,000 for the year 1900 cannot
be regarded as improbable.

Our national wealth was

in 1850, $7,135,780,228

In 1860, $16,159,616,068

Increase from 1850 to 1860, 126.45 per cent.

* * * * *

At the same rate of increase for the four succeeding decades, the result
would be:

In 1870, $36,593,450,585
In 1880, 82,865,868,849
In 1890, 187,314,053,225
In 1900, 423,330,438,288

_Tonnage._

In 1841, 1,368,127 tons.
" 1851, 3,772,439 "
" 1861, 5,539,812 "

At the same rate of increase as from 1851 to 1861, the result would be:

In 1871, 8,134,578 tons.
" 1881, 11,952,817 "
" 1891, 17,541,514 "
" 1901, 25,758,948 "

Total number of copies of our newspapers and periodicals circulated in
the United States in 1860, 927,951,548, exceeding that of all the rest
of the world.

Let us now recapitulate the results from our Census, founded on a
comparison of the Slave and Free States.

* * * * *

MASSACHUSETTS.--Free State. MARYLAND.--Slave State.

Area, 7,800 square miles 11,124 square miles.
Population in 1790, 378,717 319,728.
" 1860, 1,231,066 687,049.
Products in 1859, $287,000,000 $66,000,000.
" per capita, $235 $96.
Railroads, 1,340 miles 380 miles.
" cost, $61,857,203 $21,387,157.
Freight of 1860, $500,524,201 $101,111,348.
Tonnage built in 1860, 34,460 tons 7,789.
Bank capital, $64,519,200 $12,568,962.
Imports and exports, $58,190,816 $18,786,323.
Value of property, $815,237,433 $376,919,944.
Gross profit on capital,
35 per cent 17 per cent.
Copies of press circulated