THE NEW YORK PUBLIC LIBRARY.

ASTOR, LENOX AND TILDEN FOUNDATIONS.

For the Vo

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IN MECHANICS; NATURAL PHILOSOPHY; ELECTRICITY; CHEMISTRY;
ZOOLOGY AND BOTANY; GEOLOGY AND GEOGRAPHY;

METEOROLOGY AND ASTRONOMY.

Ellustrated with Engravings.

BY THE EDITOR OF "THE ARCANA OF SCIENCE."

"Science pervades our manufactures, and Science is penetrating to our agriculture; the
very amusements, as well as the conveniences of life, have taken a scientific colour."

PRESIDENT'S Address to the Brit. Assoc. 1840.