T R A

C

T

S

ON

MATHEMATICAL

- AND

PHILOSOPHICAL SUBJECTS',

COMPRISING,

AMONG NUMEROUS'lMFORTANT ARTICLES,

THE THEORY OF BRIDGES,

WITH SEVERAL PLANS OF RECENT IMPROVEMENT.

ALSO

THE RESULTS OF NUMEROUS EXPERIMENTS ON

THE FORCE OF GUNPOWDER,

WITH APPLICATIONS TO

THE MODERN PRACTICE OF ARTILLERY.

IN THREE VOLUMES.

BY CHARLES HUTTON, LL.D. and F.R.S. &c.

Late Professor of Mathematics in the Royal Military Academy, Woolwich.

VOL. III.

LONDON: '

PRINTED FOR F. C. AND J. RIVINGTON ; G. WILKIE AND J. ROBINSON ; J. WALKER ;LACKINGTON, ALLEN, AND CO. ; CADELL AND DAVIES ; J, CUT11ELL ; B. AND R.CROSBY AND CO. j J. RICHARDSON J J. M. RICHARDSON; R. BALDWIN ; ANDG. ROBINSON.

1812 ,