C 6 7 6 ] 
degree neceflary to congeal the mercury ; which Mr. 
Zeicher alfo at length obtained ; the degree of cold 
of the air being the 175th degree of De Lille’s ther- 
mometer, or the 30th of that of Fahrenheit. 
LXV. An Account of a complete Luxation 
of the Thigh Bone , in an adult Perfon , by 
external Violence *, by Mr. Charles White, 
Surgeon , at Manchefter. Communicated 
by George Lloyd, Efq\ F. R. S. 
Read May A S Robert Hogg, (a farmer in Clyfton, 
1 7 6o ‘ fjL about four miles from Manchefter) 
a ftrong, robuft, middle-aged man, was taking a load 
of wheat from oft* a horle, on the 20th of March 
1759, his foot flipping, he fell backwards; his breech 
upon the pavement, and the load of wheat upon his 
belly and thighs. The fervants carried him into the 
houfe, and laid him upon a bed, where he remained 
in the moft racking torture, when I came to him, 
which was about two hours after the accident hap- 
pened. I found his right buttock as large again as 
the other; the knee and foot of the fame fide turned 
inwards ; and the thigh much fhortened. Upon en- 
deavouring to make the thigh perform its rotatory mo- 
tion, there was not the leaft crackling to be heard. 
This convinced me, that the head of the bone was 
thrown out of the acetabulum ; and, upon examina- 
tion, I could diftindly feel it under the glutad 
mufcles: to which fttuation of it, and not to any 
bruife. 
