According to the thirteenth census of the United States, the

value of the electrical machinery, apparatus and supplies
produced in this country alone, in 1909 was $221,000,000
According to the thirteenth census of the United States, the
value of the electrical machinery, apparatus and supplies
produced in this country alone, in 1909 was $221,000,000. In
1907, the value of the electric light and power stations in the
United States was $1,097,000,000, of the telephones
$820,000,000, and the combined income from these two sources
was $360,000,000. Nor does this represent a tithe of the
values, as yet barely realized, which these researches placed
at our disposal. Thus in its waterfalls, the United States is
estimated to possess 150,000,000 available horse-power, which
can only be realized through the employment of Faraday"s
electro-motor. This corresponds, at the conservative figure of
$20 per horse-power per annum to a yearly income of
$3,000,000,000, corresponding at 4 per cent. interest to a
capital value of $75,000,000,0000.[3]


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