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“Not all the winds, and storms, and earthquakes, and seas, and seasons of the world, have
done so much to revolutionize the earth as Man, the power of an endless life, has done since
the day he came forth upon it, and received dominion over it."-H. BUSHNELL, Sermon on the
Power of an Endless Life.

NEW YORK:

CHARLES SCRIBNER, 124 GRAND STREET.

1865.

ENTERED, ACCO rding to Act of Congress, in the year 1964, by

CEARLES SCRIBNER,

In the Clerk's Office of the District Court of the United States for the southern Wlotrict of

New York.

JOHN F. TROW,
PRINTER, STEREOTYPER, AND ELEOTROTYPER,

46, 48. & 50 Greene St, New York

PREF A C E.

The object of the present volume is : to indicate the character and, approximately, the extent of the changes produced by human action in the physical conditions of the globe we inhabit; to point out the dangers of imprudence and the necessity of caution in all operations which, on a large scale, interfere with the spontaneous arrangements of the organic or the inorganic world; to suggest the possibility and the importance of the restoration of disturbed harmonies and the material improvement of waste and exhausted regions; and, incidentally, to illustrate the doctrine, that man is, in both kind and degree, a power of a higher order than any of the other forms of animated life, which, like him, are nourished at the table of

bounteous nature.

In the rudest stages of life, man depends upon spontaneous animal and vegetable growth for food and clothing, and his consumption of such products consequently diminishes the numerical abundance of the species which serve his uses. At more advanced periods, he protects and propagates certain

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