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the Motion produced in the Body held by it in the 
fame Diredion, or from Weft to Eaft. When the 
left Arm is made ufe of, the Reaftion of the Mufcles 
will be from. Left to Right, and therefore the Mo- 
tion of the pendulous Body from Eaft to Weft. And, 
agreeably to this, I have obferved, (as I formerly took 
Notice, though this Reafon did not then occur 
to me) when I ufed my left Hand, all other Circum- 
ftances continuing the fame, the Motion of the pen- 
dulous Body was from Left to Right, or from Eaft 
to Weft, contrary to what was obferved when held 
by the :right Hand. 
Yet full neither of thefe Solutions would account 
for the Variety of Oddnefles 1 have met with under 
various Ckcumftances. 
I proceeded therefore to try with Refts for my 
Arm of different Heights, having an Arm of Wood, 
about two Feet long, fixed to a Reft for my Tde- 
fcopes, which I could raife to any Height I wanted j 
and I found the Experiment fucceed only well, when 
the Reft was lower than the eleftric Area^ and the 
Arm was fupported upon its Elbow, which was the 
Pofture conftantly made ufe of, when refted upon a 
Chair, the Chair being lower than the eleftric Area^ 
that it might lefs affed the Effluvia^ as was then 
thought. 
1 began now to think with myfelf, whether it 
was not poftible, that an Inclination to a Motion one 
way in the Perfon that holds the Body, might not 
have fuch an Influence upon the Arm, and confe- 
quently the String and pendulous Body, as to deter- 
mine them the fame way by fome PrefTure or Byafs 
put upon it, though no Motion fenfible even to him- 
Ct 2 felf, 
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