To the Right Honourable
JOHN Lord SOMMERS,
Lord High Chancellor of England,
Preſident of the Royal Society:
And to the
Council and Fellows
Of the ſaid
ROYAL SOCIETY
OF
LONDON,
FOR THE
Advancement of Natural Knowledge.
This Twentieth Volume
OF THE
Philosophical Transactions
Is humbly Dedicated
By Hans Sloane, S. R. Secr.
By Hans Sloane, S. R. Secr.
