New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1864-06-30
been manufactured into cloth In Massachusetts
than year ago.

fNfI0SlNE tOMfOtNDo
Mr. SCOTT RUSSELL has repeated before the Royal In.
sutiOn. London. the opinions expressed by him at the
last meeting,of the British Association for theoAd
yaneomeEt Of Science regarding the force ceanlSoss
and comparative safety OF Baron Lenks gun cotton.
lie spoke also OF the uncertainty. as chemical compo-
son of gunpowdei. and expressed s conviction that
% per cent (sohd IDeiieD OF It's ingredients were use
less and encumbered the action Of the remaining 81
gaseous parts.
In relation TO this item Mr. MAYSARD remarked that
the experiments with gun cotton in this country had
not been successful. as was expected Baron Lenks
compound is into ropes fine threads, In order
thatthe whole product will be soobronai IN It's expo-
sion hut this regularity in the time Of explosion does
seem TO have been accomplished. If guncoion is
raInmed down into gun it may at first work well, but
IT, again it Isremmed down too hard viii explode and
burst tho gun. The difficulty 49, that IN getting inc
ball down il NAV often be necessary TO give the ball an
extra ram and this will Cause an premature explosion
GGnooiton possesses many good qualities one best
is that il does not absorb mostgro IL is also very hight
Perhaps the danger OF premature explosions might ~
avoided by making il into cartridges. Tor blastifs
purposes is valuable but for il is too quick in
its action DIR. DoTemus OF this cry was the nis 10
make two charges Of gunrowder Into one and have
them burn the same length of time as one charge
Mr.. bartlett said that the chemical popularity Of
Baron Lenks gun cotton was that II contained more
oxygen than tie ordinary kind. lie inquired whether
Dr. Doremuss cunpowdcr was still uscd in The army.
MIR. MAYNARp lEey, it had been very largely used IN
the six pound batteries. Officers connected with them
have expressed preference for II, as II leaves nothing
in The gun that requires swabbng out Therefore IL Is
not necessary TO cover the 0uchboe with the hhger
by DoreIuus is highly pTi2ed in Franco and Austria
Mr. PAGE snd that the - per cent OF gunpowder the
solid part spoken OF useless was large anoaht 70 ne
ported but is not the solid matter really essential
hold the gases resulting from the explosion III Sold
form before they are used
| MIR MAYvATD stated that interesting experiments
are now being made regarding the Feasibility Of dis
pensng with some Of the solid constituents by parties
in This country.
made regarding the value OF gun-eotton in blasting
Its act on IL violent and il crupbes the stone III Its
Immediate vicinity. Where it IL desirable 10 separate
rock regular sizes. il is better TO use gInpowder III
the series OF holes drilled in the same night line.
DIAMONDS
DR.. PERCY, in n lecture reported at length IN the
London Chemical News describes the yar1ous localities
where diamonds have been fonnd and the chief rocks
constituting such districts. The qugrtziie IS sicious
rock which the Of itacolumnite has been given
from Itscolumni the name of "a town. II is found IN
some cases to be flexible; this is owing 10 the inter-
position Of little micaceous scales biologists STATE
that it is bcyord doubt metamorphic rock; that is
rock which has been changed materially subsequent 10
It's deposition. No fossils have been found IN IT, Ihe
itacolurriie alternate with meiamorphc schst. The
latter Is very easily disinierrated or socncd I" great
derh Ii s said the softeuing is due 10 Heavy rams,
reported 20 contain nitric acid after storms. In the
pfolEcts Of dsregraton Of these rocks numerous rare
minerals beside the diamond were found.
In the Ural district diamonds have been found since
Humboldts visit in lsl9. He suggested the probable
existence diamonds there from the geological rnar-
y-of the district totha Of Brazil few diamonds have
been found in the tia coiuInnite occurring IN Norm
Carolina and Georgia
N.w comes the question. ard II is question which
has not vet received soutOnh this ia colnmnitH be
n there IL no doubt IL IT, rock Of sedmenary origin
have the diamonds been developed IN this rock suDsc
quont 20 lie depoiton or derived from the preersng
rock out Of which this scdemeniaIy rock has been
macci
With regard 20 the possibility Of maxi diamonds
scarcely a chemist il 20 be found who doubts that one
day or other diamonds vii. be made various attempts
have BEEN made with the hisnlphde OF carbon. We
were informed, O good many years ago, that some
Frcncl chemist had succeeded IN making diamonds by
plugging phosphorus into this liquid. composed OF sui
piur and carbon. which has high IcirGctitc power
III WA said that in this way Tire diamond might Dc pro-
duccd the sulphur being taken nway from the c1n'
pound BY the phosphorus and Tie carbon being act rce
IN cry stane form. Then again il has been attempted
c The ctar : fs f spf a. PIECE s, 81 7In u & 9iSS
ior ten or twelve years Tic SILVER became bhckened
on the surface which seemed - Dc an indie iDu Of de-
conru.itCr rs though the Suphur taken away 80
rs 10 ALLOW Il gradual cl1naton o. the carbon IN
fortunately il happened that this bsupiidc ~ carbon
cpoYaed upon had been entirely free nom su'rhnr
rnG al ta The silver did 10 take cut TIE sulphur
which had been contained IN state OF solution IA the
sulplidc At pres ~, ruth compelled MIN 20 say that
have NJ clue whatever TO iar as DC Ehr" ~ 10 ie
mode in which diamonds have been produced by Ne
tyrc 5fost certain it j. thgt high rmicfnture hns
not loen employed because i loses IL character At
high temperature. There are many hhs'aD'e com
poru1g If carbon now Known which my possibly be
ieGuccd one day hy clecifOytic scion. ara ihen we
nav be able 70 generate the precious mHeral-the
: Labels roR POISON DOTTLTs.
To urcvent accidents arising from careless OF sleepy
nnrscf giving medicines oll Of wrong bottles MY.
/ Thonrer proposes using ~1el having sahe Iap"r
border ihgs appealing strong! 70 me sense oi tou'i
which ii is Presumed viii warn Tie horeI tht danger
VINE EARTUESwARE ~ IEAScF.
I Tho Frouch Goyerumeat are about e,.ib!.-hiag
school ~ Teycrs for instruction IN modelling. drawing
and painting cerc0gs and tcTfcons materials.
YATTY ACIDS TOR SOAP AND CANnIrs
NJ rcuries in q memoir TO TIC French Academy Of
Science suggests cioap and csy notlOd Of pafa.
So aud g,rg gcIlF anu El4rfIl'f. IN me Niti
ugry state tn.uw is snpnutfd Will difficulty. By melt
ing iho ,sow ia water, containing little soap ~ sou
ton. iir tlioV .ume2 eoOaaT state ana y zen
readily attacked br -irfn gumitl "i "iEnh W men
ti IRE r. raised % IJo g. the alh aJd gi!c rine
quicay separate. Ifcftiy acids are ATaied Pao-
INC TIE soap in water soidGatcd With suphuic ncd Inc
arie acid will then cry snlize aAd Tie olcic acid can
lie otainel almost CGlOIes3 with The aulphEe OF soda
end can then BE made iltO soap. VI. Che'Icul COM
acnded tbs process before he Academy as ingenious
DANGEROUS LIGHTSiSG-EoDs.
a detective NghtningIod is dangerous, bcca1se y
draws toward the house force which cannot condnct
away hoE H. death Occurred on ,ne it,h 0, l'ss
rnonh 10 Rensselaer, Indiana. by lightning m house
two ard half stories high. situated IN grove Oh tah
timber. Ihc Iehtuins-rod designed to protect the
building made Of two kinds Oi INC hral ioe
upper gecions of ocla g0nu copper the rcmnlnde
was an iron rod Copper is much better conductor OF
electricity than iron. The copper iOd received more
than the iron rod cOgld instantly cory away, ana me
cnns Uguence that portion sought rs PAIN 10 lne
ground through the house. human BODY was the
Rridee by which il crossed bed, and Life was swept
on IN its passage. Touching this item.
Mr. PAGH said he formerly had considerable practica
experience in the arrangement oil hghlnihyloGs' eId
thou Int most Of the accidents from lightning were lhe
result oi imperfect insulation The rods are not pop
cyy fnstrBod with nOncOnduciOrs, and 90 lot always
enter into the grO nd far enough 10 reach the moisture
D.. RoYKIL spoke OF an instance where house was
struck and tho whole was instantly one mass OF name
M BARTLETT thought IL singular that cases occur
every scson when person Is struck while IN the street
the lightning not goekng the roofs OF the surrounding