im ] 
Befidcs the Quilting, which the Bracer is lined with, 
a (mail Cufhion is put upon its Extremity, in order 
to lodge flill more conveniently the Head and the 
Neck of the Humerus , and to preferve the foft Parts 
from any Contufion, which the Impulfe of the Ma- 
chine might produce/by its greateft Forces a&ing upon 
that Part. 
The Arm being thus placed and well ftretched out 
upon the Bracer, you tie about it Two Sliding-knots, 
one above the Eibow, and the other over the Wrift, 
after having guarded thofe Parts with a very thick and 
foft Comprefs 5 the Two Sliding-knots are fattened to 
the Fork of the elaftic Tail of the Bracer,* after which 
you complete the fixing of the Arm with the Three 
Girts of the Bracer, under which are alfo put Cotn- 
prefles like thofe juft mentioned. 
The Arm being thus well adjufted, you endeavour 
to give to the Body and to the Hollow of the Articu- 
lation of the luxated Bone the proper Situation and 
Steadinefs neceftary for the Succefs of the Operation, 
which is eafily executed with this Machine, by the 
Girts of the Bodice, of which the horizontal one 
keeps the Patient’s Breaft clofely applied againft this 
Piece, and the vertical Girt retains the Scapula , the 
Clavicula , in fhort, all the Parts where the Bone is 
to be puttied back, in a Situation proper for receiving 
it, and for not deviating by yielding to the Efforts 
of the Machine. 
Every thing being thus difpofed, the Surgeon places 
himfelf behind the Patient, mounted upon fomethin°- 
that raifes him high enough to infped the Effeds oT 
theProcefs; to examine by the Touch where it ope- 
rates j in fhort, to conduct the Whole by Feeling and 
by 
