ion will be weaker, and _vice
versa_. A sick-room, filled with a number of people, and with a large
fire in it, or fed with the corrupted air of a furnace, without the
access of pure air, will always prove a dangerous place for a patient
in torpid fever, the fire and every living soul in it absorbing the
oxygen indispensable to his recovery. And if the case become typhoid,
there is little hope of saving the patient's life without plenty of pure
air.

89. CONTINUATION OF PACKS--CONVALESCENCE.

Whether the eruption appear or not, the packs should be continued during
the whole course of the disorder, and as long as the throat continues
troublesome; and one pack and bath a day should be given during some ten
or twelve days, after every symptom has disappeared. The patient, during
convalescence should not go out, except after his bath and in fine sunny
weather, till he feels quite well. However, he should not be kept
unnecessarily too long in-doors either, as exercise in the open air will
assist him in regaining his strength. If the weather is clear and
bright, the low temperature of the air need not be minded. I never saw
any one take cold after a pack and bath that walked out warmly dressed
in clear and cold weather.

90. MINERAL ACIDS, IN CASE OF SEVERE SORE-THROAT.

In case the throat be very troublesome, there cannot be any objection to
using the mineral acid, as I have indicated above (35), except
homoeopathic remedies should be thought preferable and found to afford
sufficient relief. Some good may, and no harm can be done by either.

91. PUTRID SYMPTOMS--GARGLE--SOLUTION OF CHLORIDE OF SODA--DRINK:
CHLORATE OF POTASS--LIQUOR CALCII-CHLORIDI.

Should _putrid symptoms_ make their appearance (21), I would strongly
advise the acid in full and repeated doses, as well as the frequent
repetition of the packs. In putrid cases, not only the syrup, but also
the gargle will do good service. Gargling is so much the more advisable
as the putrid matter should be frequently removed. If nothing else can
be had, pure water or water and vinegar may be used. The temperature of
the gargle should be about 70 deg.-75 deg. Fahrenheit. For the same purpose, the
_aqua chlorina_, and the _chloride of soda_ have been strongly
recommended.[34] A few drops of the solution may be used, also, on the
compress outside.

92. TREATMENT OF AFFECTIONS OF THE NERVOUS CENTRES.

In affections of the nervous centres, the _brain_, the _cereb