The sun. (Fayetteville, N.C.) 1883-188?, 1883-09-26


of microzyme. As yet he bases his opinion
upon theory, because no one has discovered
the supposed germ of the disease. The proba.
bllity is, however, thatthe theory will be con-
hrmed before long. Many very eminent men
are and have been devoting their attention
for some time to this subject of cholera
origin, and good results may be expected
The late intelligent engineer, Mr.. Holley,
believed 1t certain that perfect YIELDS are
made by means of perfect contact due to
fusion, and that nearly perfect welds are
made oy means of such contact rs may be
got by partial fusion in a non-oxdizing at
mosphere, OF by mechanical fitting of sur
taces-whatever the composition of the iron
may be within all known limits; but, while
high temperature is thus the cause of that
mobility which promotes welding it is also.
remarks Mr.. Holley, the cause, in an oxi-
dizing atmosphere, Of that burning" which
Injuries both the weld and the iron.
The improvement made'by M. Kabatl in
/
claimed to meet the important dcsideratum
of increasing the active surface of the plates,
without proportionally adding to their
wcight-it being at the surface and over
relatively slight thickness that are produced
those reactions which give rise to the second-
airy current. To provide this greater extent
Of surface, the plan rasorted to, is that of
making each plate consist of eighty or one
hundred thin strips, alternately corrugated
and f1at these being bound together SO us to
allow free circulation of the liquid used.
and thus insure the increased effect aimed
Mt.
The proposed method of COMPRISING hard
steel, known as the Lau process, has been
applied on scale of sufficient extent in
France, to test its value, and with favorable,
results According to this SYSTEM, the molten
metal is submitted to the action of a hy-
draulic press capable Of exerting pressure
of from about Is, 900 to $4,000 pounds per
square inch, the pressure being kept up until
the ingot has solidifed and cooled It ap-
pears that numerous analyses, made with a
view of ascertaining the quantity of carbon,
show the interesting fact that the quantity
of combined carbon, in proportion to the
tctal quantity of carbon, is greater in the
compressed than in the ordinary steel.
The plan of obtaining q temperature higher
than that of the boiling of water or of oil, by
the use of q sand-bath, has been the usual re-
sort on the part of chemists. As this method,
however, has its drawbacks or deficiencies,
sand beng very bad conductor of heat,
German chemist hasproposed as substitute.
the employment of pounded fragments Of
graphite; these have the property of letting
the heat pass much better, do not oxidize,
and have no soiling effect on the enclosing
vessel. L'ElsctrieSte admits the advantages
presented by this mode to electricians who
have to make researches in thermo- electricity,
adding that small shot of iron would serve
nearly the same purpose. ' 90" ...a.
Greenheart timber, in its natural state, is
now the only wood in use for hnrbor works
that is considered proof against the attacks
of marine creatures and those of the white
ant in tropical countries. The advantage
thus possessed by the wood in question is
due to its great hardness and to the presence
of large quantity of essential oil. 1t is ma
tive to Demerara, is very hard and durable,
weighs about seventy five pounds to the
cubic foot, and has a specific gravity of
1.O89, so that it is little heavier than water
Great care is required in working it, as it is
very liable to split thus, in saving, it is
necessary that all the logs be bound tightly
with chains, fhiling which precaution the
log would break up into splinters, and be
very apt to injure those working upon it.
Some French alloys of an intesesting char
acter have been described in the ReOue In
dustrielle Scrap iron and iron t,lrnings and
filings, OF iron sponge eoarsely pulverized,
are mixed with minerals containing man.
sanese, tungsten, titanium or silicium. also
pulvcrizcd, in suitable proportions, and
moistened u. u.iformerly and Completely with
an 4lO1uOulCd1 OK uu uC1ll oOiuIAOu, dAtcA
which the mass is compressed in moulds
Great evolution of heat takes place, and in a
few years hard, compact mass results,
which is broken into fragments with
sledge These fragments do not disintegrate
at the temperature of melting iron; they are
used in peculiarly constructed high fur
mace, and, when reduced, yield excellent
alloys The degree of temperature required
to obtain the results aimed at is very high.
The President and party have passed
Wind ri9er, but the correspondents, judging
from their inflated dispatches, still linger on
its shores.
"Mother, why are angels always little boys
and never little girls ?" The mother, after
long refection-''To avoid scandals in Para
disc. my child"