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348 ECONOMIC INQUIRIES AND STU! IES
The United States naturally claims first attention in
a matter like this, both on account of the magnitude of
the increase of population there, and the evidence that
recent growth has not been quite the same as it was
earlier in the century. Continuing a table which was
printed in my address as President of the Statistical
Society, in 1882, above referred to, we find that the
growth of population in the United States since 1800
has been as folIows in each census period:

Population in the United States, and Increase in each Census Period
of the Nineteenth Century.
-------
Increase since previous Census.
Population.
Amount. Per Cent.
Mlns. Mlns.
1800 5·3 - -
'10 7. 2 1·9 3 6
'20 9. 6 2·4 33
'30 12·9 3-3 34
'40 17.1 4· Z 33
'50 23. 2 6.1 3 6
'60 31.4 8.2 3 6
'70 38.5 7. 1 23
'80 50.1 II.6 3 0
'90 62.6 12·5 2S
1900 75.7 1 13.1 21

Thus it is quite plain that something has happened
in the United States to diminish the rate of increase of
population after 1860. Up to that time the growth in
each census period from 1800 downwards had ranged
between 33 and 36 per cent. Since then the highest
rates have been 30 per cent. between 1870 and 1880,
and 25 per cent. between 1880 and 1890. There is a
certainty moreover that, owing to errors in the census
of 1870, which were corrected in 1880, and which have
been officially acknowledged by the United States
census aut~orlties, the increase between I870and 1880
1 Tl}is does not include population of Indian reservations, etc.,
now included in the official census for the first time.