New-York tribune., 1875-02-11
MEDICAL AND SURGICAL NOTES.

CuLoRAL HYDRATE.-The manufacture OF
chlora hyrate is conducted on an enormous scale
some German makers supplying over 800 pounds d'hy'
Chlorine is passed into alcohol OF at least nineysx per
cent For 100 to $50 pounds of alcohol the current OF
bIorine 1nust he maintaned for twelve to fourteen
~ -, (Which time the temperature rises 60 TO 75o
nd the LIQUID acquires the density Of 4o Baume The
crude product thus obtained is purified by heating 1t
with an equal weight OF strong suphurc acd in copper
vessels lined with lead. Considerable Quantities OF
hydrOchloric acid escape first, and fPrwaId chOral
distis at 95o to 1000 This dstae Is redstilled col
ected in glass TASKS and mixed with water; and the
hydrate then formed is either poured into large pOrce
lain basins in which 1t sodes in ckts, or Is poured
into vessels one third full of chOrofOrm, to crystalline.
ARSENIC IN THE HoUsEHoLD.-In its invcsti-
CATION OF the extent which arsenic is at present
poyed in domestic aud household purposes The Lodon
Lancet gives the testimony OF DR.. BOas, who was in
duced 10 examine various samples OF green tapers,
candles, &C., with the view Of ascertanng what color
ing matters used in their manufacture. or thirteen
specimens one only contained arsenic, the majority
beng colored with veFdigris, and two samples
tinted with uramar1ne green. Tle arsenical tapers
were OF the kind usually employed in houses for lighting
gas and taper, weighing 1769 grains, found to
O276 grain OF arsenous acid Now considering
the susceptibility of TO the effect
arsenlcespeciay when the poison enters the system
by respiratory orgaBsthe fact is obvious the
danger OF thus using volatile poison even though the
quantity be small, for c0orng tapers or other similar
articles Intended for burning houses On examining
sample Of wall paper Dr. B0las found that contained
27.63 grains OF afsenlOu5 III square
slight attron suicing In this deIach portion
aud diffuse IL through the air as fine dust
Poisonous HAIR PREPARATIONs.-The an
males de la Societe de Medicine de Grande Belgium,
speaking Of lead poisoning caused by hair preparations
relates the case OF man, aged 65 who suffering
from muscular rheumatism, affecting chiefly the
shoulders the patient had also OF both arms
The attending physician had the painful parts wrapped
up In cotton waddng, and prescribed lime juice and
narcotics great improvement was rapidly felt but
il only lasted for a short tne for month aferward
the patients fingers were struck with paralysis. No
blue tinge could be on his gums, though he had
suffered with severe coics at various times The water
used for drinking purposes was obtained from brick
well and kept IN wooden pals After long researches
az to the cause OF such 10 was at last
that 10 preceding the man had been the
habit of using for backing his nair certain liquid
that he prepared himself by adding TO prt OF water
two teaspoonfus of OF lead and three teaspoon
fuls sulphur This 10 his custom 10 apply 10 his
hair at least once u week. The physician stopped
rely the OF the mixture. ana nnder the Influence
OF electricity and the Of iodde OF potassium the
e9cs disappeared and the patient recovered entirely
Vast Quantities OF mixtures than tbis arc IN
almost universal use for dressing the balr.