TO
Sir Iſaac Newton, Kt.
PRESIDENT,
And to the
Council and Fellows
Royal Society
OF
L O N D O N
Inſtieuted for the
Advancement of Natural Knowledge;
THIS
Twenty Ninth VOLUME
OF
Philoſophical Tranſactions
IS
humbly dedicated,
BY
Edmond Halley, R.S. Secr.
