THE

MATHEMATICAL PRINCIPLES

OF

MECHANICAL PHILOSOPHY

AND THEIR APPLICATION TO

THE THEORY

Of

UNIVERSAL GRAVITATION.

BY

JOHN HENRY PRATT , M.A.

FELLOW OF GONVILLE AND CAIUS COLLEGE , AND OFTHE CAMBRIDGE PHILOSOPHICAL SOCIETY.

CAMBRIDGE ;

PRINTED BY JOHN W. PARKER,'UNIVERSITY PRINTER,PUBLISHED BY J. & J. J. DEI^H$6n, CAMBRIDGE ;J. H. PARKER, OXFORD; MILLIKEN AND Co., DUBLIN;MACLACHLAN & STEWART, EDINBURGH ;

AND

JOHN W. PARKER, WEST STRAND, LONDON .

M.DCC'C.XXXVI.