A

DISSERTATION

ON THE

Antiquity of the Garth,

READ AT THE ROYAL SOCIETY, 12th MAY, 1785.

Το αληθένεια μόνον δύναται τις ανθρωπος ποιείν θεω παραπλησίως

PORPHYRY.

By the Rev. JAMES DOUGLAS, F. A. S.

LONDON:

PRINTED AT THE LOGOGRAPHIC PRESS,

AND SOLD BY

GEORGE NICOL, BOOKSELLER TO HIS MAJESTY, STRAND..

MDCCLXXXV.
AB.

THENEW YORK
PUELIBRARY

1

ASTOR LENOX AND TILDEN FOUNDATIONS. 1397.

1833

15

PREFACE.

M

ETAPHYSICAL truths can

only be established, by producing effects from correfponding caufes; and though we may confront fuch demonstrative evidence with the immutable laws of mathematical decifion, we must be fenfible that there will ftill remain fome pretence

for