(893)
Numb. 45
Beginning the Fifth Year.
PHILOSOPHICAL
TRANSACTIONS.
March 25. 1669.
The Contents.
A PREFACE
To this Fifty Year of the Transactions.
IT may perhaps be expected, that here at the Entrance into the Fifth Year of these Philosophical Communications, something should be prefac'd, as hath been done formerly for an Introduction into each of the Four preceding years, beginning always (accordinq to the English Accompt) in the Moneth of March. Briefly then, I shall make a few fresh Reflections on what is past, to the purpose of Impressing some few things perhaps not altogether inconsiderable, And thence offer a Prospect of what may be hoped to be the Product of our future Endeavours, as God shall vouchsafe to prosper them.
In the first Volume, containing the Transactions of Two Years, 1665, 1666, though we were fatally interrupted by the Plague,