202 Experiments on capillary Syphons 
well to refer to the case of a Serjeant Clarke, related by 
Mr. Bellingen, Assistant-surgeon of the 1st Foot, and dated 
Trichinopoly, February ‘26th, 1813, and inserted in the 
Times paper, August 27th, under the title ** Hydrophobia.’’ 
It is there considered ‘* a case which appears to contradict 
this fortunate and promising one”’ (alluding to the success- 
ful case published by Dr. Shoolbred). In this instance, ou 
the 23d February, at nine o’clock, a large orifice was opened 
in the patient’s arm, and about 40 ounces of blood were 
taken. The patient complained of excessive languor, but 
did not fuint, yet some of the symptoms were diminished, 
At four o’clock bleeding was tried again; he struggled so 
much daring the operation that-the quantity could not be 
exactly ascertained, but it might be from 16 to 18 ounces. 
The pulse, after this bleeding, fell so low as to be scarcely 
discernible near the wrist, and towards the close he vomited 
a quantity of ropy phiegm mixed with frothy saliva. He 
continued to struggle violently for some time, then fell 
quiet for a few minutes, and expired about a quarter before 
five. 
After a few further remarks, Mr. Bellingen concludes, 
that blood-letting in this case had a timely trial.”” But 
it must be recollected, that in the first instance (although 
the quantity of blood taken was forty ounces) the patient 
only complained of excessive languor, but did nol faint. 
During the second bleeding, the pulse was. scarcely dis- 
cernible, but this was not three quarters of an hour before 
the patient died. 
Without wishing to show any disrespect to the opinion 
of Mr. Bellingen, might it not be inferred, that the first 
bleeding was incomplete ?—for although the 40 ounces were 
taken, his patient did not faint—and that he was weakened, 
and the disease too tar advanced for the second bleeding 
to have a chance of success ? 
XXXIV. Experiments on capillary Syphons with electrified 
and wiih heated Liquids. 
To Mr. Tilloch, 
Srr,— Ix repeating the well known experiment of causing 
water to flow in a constant stream from a capillary sy- 
phon, by means of the electric fluid, it struck me that this 
effect might be produced also by means of heat, because 
in many instances the electric fluid so nearly resembles it. 
I accordingly 
