THE

CABINEТ

OF

NATURAL PHILOSOPHY.

CONDUCTED BY THE

REV. DIONYSIUS LARDNER, LL.D. F.R.S. L. & E.

M.R.I.A. F.L.S. F.Z.S. Hon. F.C.P.S. M.Ast. S. &c. &c.

ASSISTED BY

EMINENT LITERARY AND SCIENTIFIC MEN.

A PRELIMINARY DISCOURSE

ON

THE STUDY OF NATURAL PHILOSOPHY.

BY

J. F. W. HERSCHEL, ESQ. M. A.

OF ST. JOHN'S COLLEGE, CAMBRIDGE.

PHILADELPHIA:

CAREY AND LEA-CHESTNUT STREET.

1831.

m,a,3,