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Case VII. A girl about feven years of age received a fevere 
fracture, with profound depreflion, on the left parietal bone; the 
integuments were entire, the girl quite compofed and fenfible, 
but the depreflion was fo deep that it could contain a very 
fmall egg. Such was her fituation when brought to me, half an 
hour after the injury. Seeing that it would require three or four 
crowns of the trephine to raife this extended fracture, I requefted 
of Mr. Wallace, a military furgeon, and Mr. Pierce, to affift me 
in this charitable work. I removed all the integuments, wiped 
away the blood, and whilft thefe gentlemen with their fingers 
made compreflions over the bleeding veffels, I began to operate 
on the inferior parts of the bone. I then commenced a fecond 
on the upper part, and in a line with this; but the two ele- 
vators, though acting at the fame time, had no effe& on the de- 
preflion. Two more crowns were then applied to the fides of 
the bone, and parallel to each other. Four leavers acting in 
conjunction, it aftonifhed me to fee with what a fudden {pring 
the depreffed parts affumed their former ftation, Notwithftand- 
ing the great extenfion of this fracture, the lofs of covering, and 
of the bone itfelf, by four crowns of the trephine, this girl 
never after had the {malleft untoward fymptom. 
Wuat muft have been the event of ‘this cafe if not fpeedily 
relieved the following will fhew. 
Case VIII. Patrick Cafey, aged about eighteen, was thrown 
from his horfe with great force; the confequence was a fracture 
in part of the coronal bone, with a confiderable depreifion. | 
was 
