[ 55 6 3 
The Royal Society's whole T roy Tound Weight 
weighed, at a Medium, lefs than the Eight Ounces 
and Four Ounces of thefe Standards, taken together, 
by Two Grains and Three-eighths. 
That the Royal Society’s Averdupois Tound 
weighed in 'Troy Weight by thefe Standards, 14 
Ounces 11 Tenny Weight 16 Grains and Seven- 
eighths j or 7000.87 Grains. 
That the Royal Society’s Pile of 16 Ounces Troy , 
was lighter than 1 6 Ounces %f thefe Standard Weights, 
by Four Grains and Three-fourths. 
And laftly, That the Royal Society’s Eight 
Ounces and Four Ounces together, taken from their 
Pile, weighed lighter than their Engle Troy Tound 
Weight, by Five- eighths of a Grain . 
X. The Defcription of an Inflrument for re- 
ducing a diflocated Shoulder; invented hy 
Mr, John Freke, Surgeon oj St. Bartholo- 
mew’s Hofpital, and F. R. S. 
Gen tl emen, 
zw June IT Should not have prefented this to you, 
* 3 17+3 X but to fhew in how fmall a Compafs 
the whole Power which can be made ufe of in re- 
ducing a diflocated Shoulder can be contracted. If 
therefore a Machine for this Purpofe be not portable, 
it matters but little to an afflicted Patient Ten Miles 
off, how good an Inflrument is out of his Reach. 
This 
