[Illustration:
_Sir W. Beechy._ _I. J. Hinchliff._
_James Watt._]
A
HISTORY
OF
INVENTIONS, DISCOVERIES,
AND ORIGINS.
BY JOHN BECKMANN,
PROFESSOR OF ŒCONOMY IN THE UNIVERSITY OF GÖTTINGEN.
TRANSLATED FROM THE GERMAN,
BY WILLIAM JOHNSTON.
Fourth Edition,
CAREFULLY REVISED AND ENLARGED BY
WILLIAM FRANCIS, Ph.D., F.L.S.,
EDITOR OF THE CHEMICAL GAZETTE;
AND
J. W. GRIFFITH, M.D., F.L.S.,
LICENTIATE OF THE ROYAL COLLEGE OF PHYSICIANS.
VOL. II.
LONDON:
HENRY G. BOHN, YORK STREET, COVENT GARDEN.
1846.
PRINTED BY RICHARD AND JOHN E. TAYLOR,
RED LION COURT, FLEET STREET.