The New York herald., 1865-07-09
seia.tiae Tntslligenss.

scientiAc IntslltSenss.
The Nessa0sv d. Aidj mentions that msCnino n0Js
invented that destroy with the rapidly OF
ming vessels OF war covered with the strongest aree
plates. The motive power is electricity, and the reman
able part OF the that 10 not necessary '
the enemys vessel 70 contact with the macninsb
but at great distance The vessel ID destroyed in A. tn
stant
The Emperor OF the French has ordered trials 70 bs
made with q square mouthed gun which has been
invented by officer OF the French navy.
At Braton Ciovely, Dartmoor, England, tho cai
tivation of the sikworm b being extensively and sue
cessiully carried The for feeding the
are imported from Japan and flourish vigorously ths
moorland soil
Mr. r. Jobert, Porchcster terrace, London, has pcr-
fcctcd process of fixing by fire, in colos or otherwise,
photographs glass; Of which he has had on private
view fine examples having the quality OF being
equally perfect tmnsparences or by rehected
light
discovery made by A. smith, at Versailles, is much
talked about among horse dealers II is composition
almost as iron which be applied under the
hoor without causing the animal tho slightest pain and
costs seventy per cent less than ordinary horse
shoes
The following process Of restoring tho features Of
dead body that has undergone put,cfacion rs being R
piled with great The body placed in water in
a watertpht shcll twenty pounds Of common salt and
ono mound Of lydrochoric acid added 10 the water
and tho immersion is sustained thrco hours The body
Is then removed te face is washed with simple water
and then with chlorine water; and finally current :"
/ chIorn, gas is passed. freely the face Thorsso-
ton OF the features is thus rendered 80 pofec "s soo
| body can be positively identified
| An irtcrca,ing expcr acnt of H. Eybert's newly
invented submarine .:ftiug machine, the Narvai TO
Gently took place the crater lake of Taxana on tho
mountains OF the Puy de Dcme, in presence Oh Genrsi
d,Exaa the project OF tho department: ID Lisbonne,
engineer the navy, and number OF persons spcciaV
| invited The valve OF the hugo machine having Oeen
opeped tho apparatus made to collapse and SINK 70
| tho bottom Of the lake diver then went down ana
attached to largo Of rock weighing sxsy tons
Tho machine then again inflated and slowly rose y
| the surface with its, mmcns, bard I'm. report ad
dressed to the Minister of Public Works by the preess
bears testimony to tbs perfect Of tho experiment.
| Tho Monsieur in giving account of tho Empcrcrs
recent visit TO tho Jardn Discrimination al AgiefA
stated his hajesy was much struck WAN oho raP"
growth o. tho ercayptus rcssnfc'd or Australian gnm
tree which has attained q height of thirty feet and
diameter Of six inches in the space OF two years I'm
remarkable trco its native soil, Aus!raia sometmee
rea hes the height of three hundred and forty nss ana
has been found more than nineteen feef in diameter -
about yard the ground 1t often ycids pianks
NOT IS than hundred feet long without nsie ds-
| feet Tho wood notwithstanding its rapid growth, -
hard and hcayirn than oak it also presents ocancA
coors and consequently well adapted for cabinet work
An as,r ngcnt gum known in commegci under the nams
of kao is obtained by making inc SONS N its bark Inc
eucalyptus evergreen, aud its Leaves nave neasJ
the same shape thos. OF the laurel The dorcopmens
of It's lateral Is no less wonder u than Us sse-
| They are small until tin, trunk aitains height
of about ono hundred feet and then they shoot our al
,cost HORIZONTALLY sometimes TO the length Of ninety
feet giving the tree the appearances Of enormous uu
brc!la The cd STRANGE say, is very small, ana nos
unlike that Of tho toba plant The flowers arc wnisc
of most agreeable smell and much Liked by bees, WHICH
extract from del cous honey II has also oeen
remarked in Australia tina, the age is almost unknewn
in dis where this tree abundant The high price
Of the seed hitherto prevented private individuals n
Alpcria from planting the eucalyptus large scale,
but the Jadin dAcclimaation last year rascd forsy
thousand plants and the begin to prodce SEED
when four years old tho dcarncss must soon cease Tne
cultivation OF the eucalyptus in the French AircAs
colony expected to be most beneficial rs WIN Avo
the result of NJ ground at present unproductive
of creating important export tadc, and o. meeting
| the ever increasing demands OF industry
In paper communicated to the Academy Of scicnocs
Pelouzs exam mes the action Of mctaoids ON glass
It is well known that charcoal and sulphur will impar
yellow tint TO glass; but the Of other mctalioida
D having not yet been examined, NJ Pelouze instituted
some experiments with this at tho great plate ea1
mandatory Of St Goban where the furnaces are 81
not expose the glass in the crucioes
all the impurities proceeding from the ashes and fuel cn
+, poyed The crucbles mado of white refractofJ
;, clay of such quality differ but little from tn
glass thcy contained Nevertheless. NJ Peouzc, In SOW
j. eal of his experiments, employed platinum crucoics
order TO be quite sure obtaining tho pucst glass posi-
ia be He obtained yellow glass by a mixture Of two hun
dred and City parts Of white sand nfty OF calcarcou
spar one hundred parts salt Of soda marking eighty
degrees Of the areometer and two parts Oh
When instead of the latter substance he used sulphur TN
yellow tint exactly the same as that produce
by charcoal only Of the volatile nature OF sui
phur somewhat larger quantity was required sii
cum ono Of the mcaods which had not yet boen tried
Welded yellow tint equal the former In every re
ra spect and horon did the Not with amorphou
n and pulveruent phosphorus Though consderaoa
IN quantity of this substance introduced did mot i'm
part the slightest the glass This was owing
t. the extremely volatile nature OF phosphorus put "a
same substance introduced into the MIXTURE under In
Ia form of phosphuret Of lime will resist the enccs
n, heat. and ipar yellow tint to glass; in every respee
= similar TO those previously obtained. ALUMINIUM a.
pryes glass in great of It's fusibity and pre-
duccs bubbles; but after Iong exposure TO heat IN
"a mass becomes tolerably homogeneous and yellow, k
the preceding sorts red heat hydrogen produce
so | the same yellow color white glass. All the kinds
glass used ia trade contain suphates and ~ the rcdu
Dc ton of these which gives yellow color to glass
From the paper addressed to the Academy Of Science
Cd by M Becquere which have already referred TO-
nd that evaporation from the leaves Of forest tre
Is an incessant cause of moisture because tho slightc
n, refrigeration the atmosphere will precptate aqueo'
"a vapos under the form OF rin which viii penetrate I'M
,v tho soil, either directly through the mediu
or the roots Tho trunks branches and leaves Of tre
~ absorb and emit warmth much slowly than the q
mosphcre hence the momcntary variations Of temper
turc experienced by the latter exercise no influence
the temperature Of forests but tho latter, warmed
n the sum- will by radiation communicate some warmth
in the air. and thus prcven, great fall Of emperatu
IA. during the night Nevertheless, M Boussngault al
ON other travellers who have examined the question in