The sun., 1894-03-11
Eorss ON sorssor AND IsDUsr,sn

The name Of msulbeerlein IL applied in Ger
many to peculiar Kind Of fbrs prepared in
| Austria from the bark Of the mulberry tree.
concerning which some interesting details
are given in the report ortoithsAustrian Consulate
At Venice From this IL appears that duintal
Of mulberry bark costs ten lire. and Yields some
twenty per cent Of ibIe; one kilo q which, in
| The Inventor. II Pssauaiis," has a factory
give. SyS osdSp.toS RgSvpSe tS h,y "a ,F'%Ss % wGlSa S9
tsrSnr seS bon S Tssp. gossHys q aps,rs s9o% s
ture has been going ON since lss7, when the
'sH SSn hc1 1qSG s
The material has thus far been used princi-
Of "ss sos SAT r9r shS
sisisSs q! !. s!s sSs, /. ..S ti%s. a 3sPs:
made OF II are characterized BIZ great dura-
bility. gloss and permsnsncy Of colors.
In paper read before the London Chemical
Society By @. H. Walker on the action OF nitric
acid on tin, some OF the prevalent ideas on
that subject are shown to be singulariy erro-
neous Among these 10 the general supposi-
tion that metallic tin dlssolves in nitric acid
with the production Of both a stannous and
stannic salt according to the conditions Of
temperature and con centratlon OF the acid In
these later observation-disclosures to determine
the amounts OF stannous salts formed under
trston Of acid. and mass of Tin trestei"it Ia
shown that with dilute acids, the increase
SS s .ss but ws
marked, for the alteration OF few dcgrees will
rsSd,nse S, the smoTnt ~ Of sta1nSps salt nothing
sssS ssGs dfSIss fcud S PIS9GTsH% sSs qsRS
solntons fs hyGrnisS stSnniS @ iSOnfsnS nitasts 81
yaryinE competition. depending on, the time
method OF publication adopted for eliminating
the nitric acid
In the construction OF public buildings in
Massachusetts, the law does not permit any
wooden ducts or fiues for either heating or
ventilation. When q fan ls used. . set Of radi-
ators or steam pipes placed In front Of the fan
may be used TO raise the air to about sixty
degrees. tho air being forced through the radi-
ators TO the main duct and taken OF BY smaller
branching pipe being provided with an ad-
justing valve 10 regulate the supply for each
tors. and there raised 70 the required tenn
psoeSsd sf' RsS tsVss s fn or or S'ioT of
steam, as desired; suitable mixing valves
and regulating the Temperature OF the incom.
ing air without materially Decreasing the vol
driving the ian % may be utilized to heat the
coils q, Or r,ssdIators In front of the ian: In
sppsp n ectro 10 es
c0Gnsidsr&sd ed desiraele. 70. heating the steam
when there is no steam In the large boiler
suitable piping and valves being included In
boiler may be resorted to. according to neces-
sty. Low 10 better than high pressure for
What 10 cIaimsd to be the latest as we'll as
most adva antagsous process for the separation
OF fine gold In placers comes from Montana. 1t
10 . dry process. designed especially for local
tiles distant from sufficient water for other
methods. the ore or gravel being run through
crusher or steam dryer. after which II 10
dumped into the hopper OF tho separator;
dropping from this, Il strikes powerful blast
Of air. which carries 1t between two sets Of
one sixteenth OF an inch Of oimoreury. These cyl
inders are placed IN two l,nes OF three each one
line. The ore first strikes cylinder similar
rsetion. which catches the ,cosrser goia and
the the npggets; then. passing between the other
conyeysr; which bears It away. The mercury
Sfrosh surises is " always % pressnted. S and Il Is
asserted that the process hns been SUBJECTED
to is .si pscasr % sdsptsSiiisy S to tss
class OF work In question.
NJ Locard has made an Investigation OF the
water pipes OF Paris. with view to ascertain
ing tho character and habits OF the life there
sustained. and notwithstanding the existence
OF which In such quantities and variety. the
city 10 noted for the general excellence OF Its
drinking water. NJ Locard studied in partic-
ular the mollusks-an important Item. since
In those pipes belongs to iorty-four species.
all OF which exist also In the rivers from which
that the modifying factors in respect to their
numbers and growth are darkness and the ra-
sSs to Ss e q
dent from the fact that colonies Of the different
,S. species are very numerous numerous, and that all indi-
sidered hygienicaiiy. NJ. Locard concludes
that the presen' OF this animal life may BIO
contains more or less animal life. aud does not
danger brought about 6S the death Of the ami.
mails and their putrefying remaina
A compound familiar to chemists. and
known as ortho- nitro phenyl acetone. Is easily
converted Into indigo by the action OF alkalis.
but the difficulties attending the manufacture
OF ketone. and its very slight solubilitY In
water. have heretofore prevented it's coming
into Industrial use as q source OF indigo. A
recent announcement. however is that OF q
method OF transforming ketons into q product
very soluble In water. the result being real
ss 'fOG man: ass soac ksson
IN ps and Pssn 1.rts ts Of
:asS .aatca Is e an b. S such
cured In needle ped crystals. The cloth or
iAeric 70 be dyed 10 padded or impregpated
printed on; In any case the prepared cloth Is |
passed ss th@5ough @ cell s9ution Of caustie sod.
Carbonate. ca borsts' % or acetate ace % OF soda. la % whsn
the blue Is formed and fixed on the hber.