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THE MOST IMPORTANT DISCOVERIES AND IMPROVEMENTS

OF THE PAST YEAR,

IN MECHANICS AND THE USEFUL ARTS ; 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 exalts the mind, and raises it above minor matters."

PRESIDENT'S ADDRESS TO THE BRITISH ASSOCIATION, 1843.

DAVID BOGUE, FLEET STREET.

(LATE TILT AND BOGUE.

MDCCCXLIV.

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Vilson and Ogilvy, 57, Skinner Street, Snowhill, London