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PHILOSOPHICAL 
TRANSACTIONS. 
I, Calculations to determine at what Point in the Side of a 
Hill its Attraction will be the greatejl , &c. 
By Charles Hutton, LL.D. and F. R. S. 
In a Letter to Nevil Malkelyne, D.D . F, R. S. 
v 
and AJlronomer Royal. 
Read Nov. it, 1779. 
DEAR SIR, 
Royal Military Acad. 
Sept, 'z 1, 1779. 
A S the experiment of determining the univerfal at- 
traction of matter, which you lately conducted 
with fo much accuracy and fuccefs, is of fo great im- 
Vol. LXX. B portance 
