[ 38 J 
been known for fome time; but tfiat Mon/ieur la 
Foffe has made them more confpicuous by his expe- 
riments. His firft obfervation is this, that, upon ap- 
plying it upon the mouths of the largeft arteries, 
when divided, the bleeding has cealed in a few mi- 
nutes, and that the mouths of the divided arteries 
have healed up without any farther difeharge. His 
fecond obfervation is, that in twenty-four hours after 
the application of this powder, a thin pellicle or 
fkin is formed upon the mouths of the divided ar- 
teries, and that within the veflels is found a fmall 
plug of congealed blood. His third obfervation is, 
that the pulfation of the artery is to be feen in a 
very diftindt manner at the extremities of the veffels. 
His fourth obfervation is this, that the coagulated 
blood is of a conical figure, whofe bafis is at the 
mouth of the veflel, and its apex in an oppofite di- 
red ion. 
Dr. Latterman fays, that all thefe curious experi- 
ments have been verified by the commifTaries of the 
Academy of Sciences, who, upon obfervation, have 
found them all agreeable to truth. 
XI. Letter from James Parfonj, M. D. 
F- R. S. to Thomas Birch, £). Z). Secret, 
R. S. concerning the Ufe of Lycoperdon, in 
fopping Blood after A7nputations, 
SIR, London, Feb. 13, 1755, 
Read Feb. 13, / ■ ^HE laudable endeavours of feve- 
X gentlemen of our learned So- 
ciety, as well as of Paris, have been exerted flrenu- 
oufly 
