244 Mr. blizard’s new Method of 
At the third and fourth times of repeating the opera- 
tion, without any compreffion, at intervals of a few 
days, the quickfilver palled readily into the nofe. 
I once introduced the point of a fleel pipe, ufed for in- 
jedting the lymphatic veffels. It is cemented to a tube of 
glafs eighteen inches long. This pipe is not fo fine as 
that of the other inflrument, yet it was conveyed into 
the pundtum without difficulty, and with little or no 
pain. To gain a greater degree of momentum I raifed 
the column of quickfilver to about twelve inches, when, 
it flowed into the nofe with a confiderable degree of ve- 
locity. 
From the time that the quickfilver paffed into, the 
nofe, lefs fluid trickled down the cheek than before. 
After the fecond or third operation, the fwelling or de- 
tention of the fac intirely fubfided. The patient at this 
time has no difcharge of mucus, and a tear but very fel- 
dom: the parts have a perfectly healthy appearance. 
To afcertain the effedts of medicines in difeafes of the 
conftitution, many experiments, under various circum- 
ftances, are neceffary; but in matters determinable by a 
mechanical operation, the effedf, as far as our fenfes can 
diredt us, is in general very plain and explicable. 
In the cafe related this is clear, namely, that previoufly 
to the injedting of. quickfilver, the tears, febaceous mat- 
ter, 
