New-York tribune., 1876-08-19
Of sewers. OK smoke and gas iucs the treatment OF
waste-water pipes and use inmanutactores' s'oi0''
cellars &c.


WOVEN MATERIAL lMIEnvroUs TO GAS AND
WATER. FOR DRY METERS, &C.-A want long iei',
90 in the construction of dry meters &c. of good
elastic material, imperyOus to water anu 10 puih"s
ga. end at the same tine unaffected by hydroear-
hong condensing from the eas. or Impurities III H.
has been met according 10 Or. Teirr,lnk, by an
article recently PRODUCED by Engineer Schuike'
which will doubtless meet with many apphcanohs'
Dry meters in which il has been employed, haVeh"1
been uoticeabiy affected byuse fol half year. bfg
p-essure regulators made with VI nave also pten
found very superior 10 the wet ones generally III use
oUd Dr. Ticftrunk states that by means Of them lie
can regulate the temperature OF an al or OIL Dath
So that tho highest ~araton will ne, exceed
D. The article consists Of woven materlai. mn
pregnatcd with Substance that preclptates III ti,o
pores and which combines high degree OF elastic,
iy VITA the requisite strength and Is not rendered
sticky and does not lose i'll mporylousness or els-
ticity under thc nuenc Of the hydrocarbons pres
ent IN burning Gas. A sample was not uhlaifei III
any of these particulars by an immersion oi thIee
days nj a cors;rnt temperature of 1O4O, IN hydro-
cerbCus extracted FROM gas By cooling II 10 - oelnW
zero The same true after digestion WITH
solution Of carbonate of ammonia, ana Win pisui-
phide OF carbon.
DESTRUCTION oy THE PHYLLoSERa iGRArEvINE-
IoUsE) BY XASTHATE on PoTAsIi.-Ihe eihcacy
of the suphocarbonate Of potash against the Ihy'-
Iorea OF grapevne-lcuse il undoubtedly due
it. in contact with the soil, as shown by Dumas;
but il seems also certain that, in maLy cases, CON
trary TO the opinion held by him, the sulphurettcd
hydrogen developed a; the same time exerts de-
cidcdly iniurious effect upon the viue Experiments
in the laboratory Of the Government agricultural
school at Vienna have, however, led to the dscov-
erv that xanthatc of potash, in contact with moist
SOIL will develop the effective bisulphide without
tie suphurettcd hydrogen; and since 1t can ho pre-
pared with nuoh less difficulty than the sulrhocar-
bonate il can be furnished ir q pure state more
chea3ly. II was also found that the yelopmeEt of
the bisuphide Is haStened by the addition OF super
phosphate to the soil. Ii is therefore recommended
10 apply dry mixture of xanthatc. sGpcrplcs-
phaje and earth, by st ewing it upon the sal, or,
still better, by wOrDg X and the rain VIII then
decomposition t" begin, and the evolution oi
bSulp pnde VIII continue toT days, according 10 tne
quantity Cf Xantate present, while the YlIet VIII
at the time be furnished Tl: potash aHd phos-
phOric acid.
CoIoRIXG GOLD by AID or BRCNNR.-Wagncr
suggested accoun; of It's simplicity the substitn-
tion of treatment with dilute aqua r,ga, for tho
usual process for impartug the tint Of pure gold TO
articles Of jewelry. On ial il was found not 50 an
swer Oh account of the inpossibiiity OF removing,
by mechanical means, a small auAunt Of chloride of
silver formed the surface and dlssolving II OF by
ammonia or hyposulphte Of soda 'aso proved un-
satisfactory. lie found bromine however, an excel!
lent means for the preparation Of gold color, with
the addition to it's aqueous solution of somo bromide
capable Of dissolvng bromide Of silver and also the
bromide Of cooper probably formed at the same
;ime) RrOmidcs of calcium. barun, and magnesium
were fouud especially adapted TO the purpose: he
recommended. therefore, solution OF 10 grams "t
bromne and $40 grains oi bromide OF calcium !oI
450 grains of bromide OF potasslunl III about ~
fluid ounces of water. The article. 10 bo cocrcd
should be moved about ia this for three To five mll-
utes, and rnscd with pure water Oh removal if" H.
I'm cas- IF al a.
solution of hyposulpe OF soda - advisable 10 r'-
possible traces Of bromide o. silver Remaining
in the depres-ios The silver is recovered from the
exhausted bath 3S bromide Of silver, by dllutDn
with 10 times its volume OF water; and the gold by
the addition 0f sUlphate Of IRON after the IS trace
of free 6ro!nihc are removed by means oi -uphuIous
acid.
CEMENT CASKS AS , SUBSTITUTE FOR WOODEN
OSEs.-H. Bollcrt, near Zurich, i'll 1871, first at
tempted to substitute casks made of cement for the
usual wooden for storng wine, his cellar being
moist aud dcstructive to wood. The success Of the
experiment was such that all tie wooden vessels
have since been thus replaced. Among the adVan-
tages ascribcd 10 the cement casks in addition 20 d.
minishcd cost Of construction, Ere8t economy of
ROOM great solidity, without expense fer rcpairs
diminished loss of the contents, and tightening Of
the work in the cellar. New wine is filed into them
without hesitation no Injurious effect ia noti'ea-
blc The general planof construction was, hrst t.
coat suitably selected portions of the cellar walls
roughly with eenent-Inortar. and then with the best
pure Portland cement, and IL form the other por-
hOns of tie Vessels by pouring the material 1t1
suitably constructed wooden nolds. lie succeeded
in rendering the finished vessels dcceptvoy similar
IN external appcalaAceVo the wooden ones AlttI HG
interior was sufficiently hardened they were filled
with water for 10 days to 8seefta'n whether thcy
were tight and also 10 extract The caustic ngreal-
eHt8 of the cemvut. The latter Object was not,
however, fully accomplished In thls way, as the
wine lost almost NIL It's acGity IN q few days, but
l-i,,.r With ion
and subseque1. rInsEG with water proved much
better and the objection on this account was ulu-
uiaiely completely removed. Others have slso ON
ployed them since tnen and their introduction by
The Wine-gf0weTs OF the HOsc Is also contemplated
CoPYfNG-INYs.-Th following statements are
taken from quite exhaustive article by c. H. Niedt
on inks IN general Inks which have their full depth
OF color as tliey 1ow from The pen ard which con-
sst of a pigment alrsdy formed, in solution, are
no. very suitable for copying purposes since consd
cradle trle IL required 10 produce copy with them,
and the original il liable TO lose too much in in
tensty IN the operation. If rcinedicd i'll these re-
spects by the addition Of more pigment and thcsch-
ing material, the writing is apt to nun under the
least exposure 10 moisture, we'll as.toyield blurred
copies The writing fluids which acquire their fall
intensity in the writing, only after the oxidation Of
certain ingredients IN solution, can be readily
adaptc to copying purposes, especially if but 60 TO
50 per cent Of the usual quantity OF water Is en-
ployed il their preparation. Ii Is simply necessary
to rctard the action of the mir upon the writing, and
thus restrain the formation in ito the nsouble Pug
ments upon which the ultimate deep color depends.
and which results from reaction between the solu-
bic constituents that can only take place after they
have been exposed to the air. This oIidl lg action
of the air upon the writing IS generally checked ~
adapting the fluid to copying, by the addition Of
some soldLc substance to IT, which will coat the
writing as it were, upon drying with vanish in
pcrmeable 10 the atmosphere Gum senegal is alto
gether the best Of yaI1ely OF suOslances cmpoAol