PHILOSOPHICAL 
TRANSACTIONS. 
giving some 
O F T H E 
Prefent Under takings. Studies , and Labour s, 
OF THE 
INGENIOUS, 
IN MANY 
Confiderable Parts of the WORLD. 
VOL. XL. For the Years 1737, 1738. 
With a Supplement, being the Croonean Lectures 
on Mufcular Motion, for the Year 1738. 
L O N T> O N: 
PrintedforT. Woodward, at the Half- Moon, between the 
Temple-Gates in Fleetjireet s and C. Davis in Tater- 
nojter-row i Prin ters to the Royal Society. 
M.dcc.xli. 
