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332 DENTAL MEDICINE.

It is soluble in alcohol, acetic acid, amyl-alcohol, chloroform,
carbon bisulphide, and glycerin, as well as in ether when slightly
warmed. It is only partially soluble in petroleum ether, and
benzine only dissolves a little of the fluid, and what is dissolved
is chloral-phenol. Fabini tested the fluid thoroughly, with a
view to determining whether it is a mechanical mixture, and it
behaved in every way toward re-agents as carbolic acid does,
while with sulphuric acid some of the chloral-phenol yielded, after
twenty-four hours, a velvet-colored plaster-like mass, which con-
sisted of meta-chloral and phenol-sulphonic acid. There seems
to be no doubt, therefore, that chloral-phenol is a mixture.
This preparation should not be confounded with the phenol
camphor devised by Cockrane (not campho-phenique), and made
by mixing together i part of carbolic acid and parts of cam-
3
phor. After twenty-four hours this becomes a liquid, having a
sp. gr. of 990. It is used with oil as an antiseptic. As a spray
it may be applied to the skin to produce local anaesthesia. It
may be employed for disinfecting surgical instruments, and upon
wool and gauze for wound dressing. It is soluble in alcohol,
ether and oils, but not in water or glycerin. Menthol, cocaine,
salicylic acid, iodoform, chloral hydrate, and mercuric chloride are
soluble in phenol camphor.

DENTAL FORMULAE.
For Foul and Fetid Indolent Ulcers. For Foul and Fetid htdolent Ulcers.
B . Chloral hydratis . . gr.x
Aquse destillatse . . . f^j. M. R- Chloralhydratis . . .355
Adipis M.
SiGNA.—To be applied as a lotion. gj.
SiGNA.—To be used as an ointment.
For a Local Ancesthetic.
B . Chloral hydratis . . . 5 ij
Pulveris camphorae . 3 ij. M.
SiGNA.—To be applied as an obtund-
ing mixture, by means of an appli- Local Ancesthetic.
cator.
^ , Dr. Storie.
ror Odontalgia— Pulpitis.
Flagg. B • Chloral hydratis,
B- Chloralhydratis. . . !5iij Camphorre (gum) . . equal parts.
Aqu£e destill f^ j. M. Rub well in a mortar to liquefaction
SiGNA.—Apply on cotton. and add gtt. v of carbolic acid.