New-York tribune., 1874-12-02
APPLIED SCIENCE.

especially of coffee beans, whicn gerun,o '.n ,i
Gcnltv After soaking n few hours in dilute potash
solution they often put forth snow whlte rauicies
Jrsry,s PATENT AYTI-FoULINd CoMrosrrIoN.-
The copper sheathing of two royal English yachts
was covered the Fall Of the year by order Oh tho
Admiralty, with "Jesty's Anti'Fouling Compost
tion md nfter remaining mOored IN the harbor
nntl the end of tho following April they were found
as free from algp and other deposits as when nrst
coated. except in very small patches near the ruddsf
BEHAVIOR OF ANrIIyE CoLoRs TOWARD ISrU-
soRIAL Notwithstanding to Bottger. after shaking
An alcoholic solution of any anilino color with su
cient quantity of infusorial earth and then adding
some water TO the mixture. and bringing tho whole
upon O paper filter. the hterato Will be found 10 DO
perfectly cooress. the eolorlng matter being re-
tanned by the earth
TRANSPARENT SoAP.-The most essential condition
in the preparation of transparent soap aud one fre
ouently overlooked, is that the soap employed
shall be rs nearly neutral possible. as any free
fatty acid present separates subsequently in clouds
and fakes; while free soda, on the other hand,
attracts carbonc acid from tho air. forming CRYSTALS
Of carbonate of soda. The transparency OF glycer,
iue soap is also said to be improved py the aouiloh
Of o small quantity Of white slrup.
PRESERVATION OF CLAY PAvING-BIl
ing to experiments made in Stuttgart IL was iouha
that bricks that had been coated three times WIN
lnseed oil were less smeary, from wear III "e'
weather ns well as moro free from dust IN summer
than those that had not been so treated The cheaPe
petroleum resducs were also cmpioyoh lhs'oiu u
the linseed OIL Saturstou of paving bricks, sahl-
stone &C. about manufactures witn not t3T rs
also hi ghly recommended where the BLACK eoior Id
not Objectionable.
PRESERVATION OF FRUIr.-The following method
for the preservation Of fruit has been patented III
England The fruit is placed in vertical vessci III
layers separated by layers OF pulVcrlzcu "i,'o ~
sugar. and Is then covered with aicohoi OIL o' o",
Lussac After IL hours tho closed vesso II 80 20
amd The m1ceratlon allowed to continue ior - 70 - -
lire occordnr 10 the nature of the frnit whi1n 10
then removed and allowed to drain and dry. Apoua
two pounds of sugar AMI TWO Pennu, VI "'''"'
recommended for four pOlhuS oi IL u'
C,1vc FOR STEAM PIPES. &C.-The following
compostion for easing steam pipes &C. Is reooh-
mended by a German association OF engineers a'
enuolin effect to that of Leroy whils 1t Is cheaper
Mix well 100 parts by weight of finely ground lime
stone $50 of finely ground stOne-coal' go OF nncly
Ground clay 500 of nuedust from the boiler 1uesl,
600 of water 10 Of suphuric acid of SOC Banmt and
* Of hair Tho place 10 be covered warmed II pos
siblc is coated with this mass IN layers from aii an
inch 10 II or inches thick, and when hlshcd may
be painted
THE MASS or JUPITER.-PowallSy has attempted a
new determination Of tho mass Of the planet Jupiter
by examining It's pcrturOing influence on the move
ments of the aserod Virginia NO. 50. The result 10
winch ne is led indicates that Tho mass OF Jupiter
should be increased by about ene-two hundred and
seventy second part of the present adoptei value
hut olthonrh tms correction enables him moro
nearly to satisfy the observations that nave octn
made upon this body. he Is yet inclined 10 atTlDate
to it only igt value, and hopes to attain Deltei
results by repetition OF MS "ork Ill lutuio Ses'
A NEW PRoCEss OF ENGRAVING ON CoPPER-The
Uydrorraphic Oice at Paris has begun process OF
engraving on copper which promises by It's rapidity
and the moderation of its price to be very widely
useful II consists in substance. first, in covering
plate of copper with thin she'll of adherng silver
upon which is spread thin layer Of colored varnlsh
second in drawing thereon. with dry point, the
lines, Topography and lettering, precisely as one
engravcs with diamond upon stone third IN cor
roding the traces by means OF the perchorde OF on
| RED MARKrNG-rNK FOR CLoTHING.-A red ink for
marking clothes which is not attacked by soap al
kalios. or acids is prepared by Wegcr as follows
Enopgh finely puivcriz d cinnabar, to form mod
erately thick liquid is very intimately mixed with
egg-albumen previously diluted with an equal bulk
of water. and beaten to froth, and ltsred through
| Gne linen Marks formed cloth with this liqnid
Inv means of a quill arc fixed, after they have be-
come dry, by pressing the clotn on the otner slde
with hot iron. The ink will keep III well-c losed
| bottles for long time without separation OF the
| suspended cinnabar.
| GOLD MINING IN THE PHILIPPINE IsLANDs.-Ac
| cordIng to q letter from Mnard to Daubree the
working of the auriferous quartz in the Philippines
| has been abandoned, the alluyial deposits having
proved much richer in grains and scales of gold. Ii
| is associated with fragments of diontc rocks AZ
itabirt with magnetic and titanic iron, the gold oc
curing in tolerably large grains, while quartz is
seldom present. Native platinum Is also found with
| H. and in the samples sent, small zircons with
| auadrangular pyramids on each end were recog-
nzed, they usually occur in auriferous alluvium
| IUsTER SHEEP, New BREED.-At a recent ex-
hibition in Bremen fleece was exhibited from
South Australia of yearling ram which was sc
remarkable for its fine silky luser and sofness, and
the unusual length lover live nches) OF the smooth
| fine WOOL as well as for its beautiful, almost
dazzling wbiteness, that all were satisfied that a
fine finn yarn, and very superior cloth, could be
made from it,. 1t was stated that 1t was result OF
in and i'm breeding of Negrett sheep with Leicester
Ijncolnl rams the number of generations required
| was not stated. however.
EFFECT or MoRpHIA on SECRHnoNs-From a
paper by Kratschmer upon the influence of NOR
pha. and of carbonate and sulphate of soda on the
formation Of sugar, and the excretion of urea in
diabetes, 1t appears that in morphia we actually
possess a remedy that not only very materially re-
duces the excreton of sugar in this disease but
| dminishes decidedly the metamorphosis of tissue
| in the body generally In this respect morphia re-
| sembles alcohol and tobacco. and would appear to
| form q valuable means OF making up for an i'm
perfect supply of food provided its secondary inilu
| cnces are not III the way.
CONVENIENT PREPARATION OF CARDoNArED
WATERFALL ordinary syphon nbOttle is employed by
Gawalouski of Prague instead OF the usual Liebigs
apparatus by placing in it. whom filled with water.
small tin tube closed with screw-cap, and sup
piled near the top with several holes about 11Oth Of
an inch wide. and charged, for two-quart bottle,
hu nlacino in IL X6 grains of bicarbonata of sod