al blackness or _foetor_ in his
stool, which had now regained their proper consistence; his dozing and
muttering were gone off; and the disagreeable odour of his breath and
perspiration was no longer perceived. He took nourishment to-day, with
pleasure; and, in the afternoon, sat up an hour in his chair.

His fever, however, did not immediately leave him; but this we
attributed to his having caught cold from being incautiously uncovered,
when the window was open, and the weather extremely severe; for a cough,
which had troubled him in some degree from the beginning, increased, and
he became likewise very hoarse for several days, his pulse, at the same
time, growing quicker: but these complaints also went off, and he
recovered, without any return of the bad symptoms above-mentioned.

I am, Reverend Sir,

Your obliged humble Servant,

WM. HEY.

POSTSCRIPT

October 29, 1772.

Fevers of the putrid kind have been so rare in this town, and in its
neighbourhood, since the commencement of the present year, that I have
not had an opportunity of trying again the effects of fixed air, given
by way of clyster, in any case exactly similar to Mr. Lightbowne's. I
have twice given water saturated with fixed air in a fever of the
putrescent kind, and it agreed very well with the patients. To one of
them the aerial clysters were administred, on account of a looseness,
which attended the fever, though the stools were not black, nor
remarkably hot or foetid.

These clysters did not remove the looseness, though there was often a
greater interval than usual betwixt the evacuations, after the injection
of them. The patient never complained of any uneasy distention of the
belly from the air thrown up, which, indeed, is not to be wondered at,
considering how readily this kind of air is absorbed by aqueous and
other fluids, for which sufficient time was given, by the gradual manner
of injecting it. Both those patients recovered though the use of fixed
air did not produce a crisis before the period at which such fevers
usually terminate. They had neither of them the opportunity of drinking
such wine as Mr. Lightbowne took, after the use of fixed air was entered
upon; and this, probably, was some disadvantage to them.

I find the methods of procuring fixed air, and impregnating water with
it, which you have published, are preferable to those I made use of in
Mr. Lightbowne's c