T O 
Sir Ifaac Newton, K t- 
PRESIDENT, 
And to the 
Council and Fellows 
OF THE 
Royal Society 
O F 
LONDON, 
Inftituted for the 
Advancement of Natural Knowledge ; 
THIS 
Twenty Eighth VOLUME 
0 F 
Philofophical Tranfa&ions 
1 s 
humbly dedicated 
B Y 
Hans S/oane, R. S. Seer. 
