Mower County transcript. [volume] (Lansing, Minn.) 1868-1915, 1872-09-05
Scientific Notes.

A NEw BLUr.-TO metallic anhmony
dissolved in aqua regia and 2ltered
through Rranulstsd glast, add . solution
Of prussiate Of potash 30 long - any pre-.
cipitate j. formed; thus Permsnent and
beautiful tlue color 10 produced, which
can scarcely be disein guished from
ultramarine. With chrome Or zinc yellow
it yields green which . almost equal In
color To Sc6weinfarth green, and 10 far less
poisonous.
IHconsusTlsLx CoATlMos yea Clorn-
Tungstate of soda he's been successfully
used for rendering cotton cloth and otl,er
fabrics fre-proof. Pesters reuommeoas' =
cheaper, mixture for the sams purpose. t.
consists of four parts Of borsx and three
parts Of sulphats OF ms gnesia, to b. mixed
first before being needed, and Dissolved -
20 to 80 parts Of boilisg water. The
goods are 70 be immersed in this .solution
immediately, then wrung out and dried
Another e&eiept mixture for rendering
fabrics nop-inaammable, recently patented
in Esgfand. CONSISTS Of equal weights Of
acetate Of lime and chloride Of esieiun,
diseolved ia twice their weight Of bot va
q New Uss voR AxIunE CoLoas.-Mr. r.
Spr1ngmuhl reeos,Deada, 4 y .0ssnan
journal, tho use of slcholio solutioos Of
various gums, for example, shsllae and
sandar1c, TO which various aniline colorD
have been added, for the puspose ofeolor-
jig Ill sorts ofpspsr, leather, .liasn, aad
other fabrics. Tho operation consists in
placing = thin solution If the oeloring
liquid in = shallow dish, aad drawing
through it tho substance to be colored,
which, alter being hung up and dried, may
receive another color on tho other Gide Il
desired. By adding 10 tho lac . small
quantity Of some ethereal oil, the sab.
stance may at tho same time be psrfansd.
any desired tint may b produced BY
judiciously mixing several ofths lae,.
Poisonous ExHAlArloxs OF TlrEa-H
Karstens, in communicates to . German
journal !" On tho lnAusnee Of The so-oalled
Poisonous Shadovs;" states that during .
long residence in tropical America he Be-
came we'll acquainted with tho suphofbia.
ceous tree, Hippomane Mansanills L, and
with tho fact that tho natives cousidsrsd
it 20 poisonous - to avoid going asar j,
asserting that merely resting under il
deep shade ~ill produce serious sicknss
and in very susceptible persons even
death. Tho poisonous influence Of this trsa
having been denied by various naturalist
especially Joaquin, tie author gathered
some Of tho juice ON the SEA coast of Ven.
e.uela, near Laguayra. In short tim<
he was seized with sensasioa Of hsa'
and swelling all over his body, especially
about tho face. The next morning b
was unable to open biz eyes, and thsir ir
ritation was % great ~ to force him Il
spend several days of great pain in darl
room. On the third day the swelling be
gan to diminish and tho euticls to eoal,
of: Tho hippomane has then . juie,
which in dry atmosphere evaporate
from tho moist bark AID acts - IN ifritan
poison to tho skin and mucous membrane
| 1t is stated by Joaquin that hs remained
many kours in close proximity to this re
without injury, but Il WAS during Storm
and doubtless the wind and water earris'
Of the nu1ious vapor. Karstsns believe
that the poisonous principle smaaasinl
from this species Of spurge 10 sitrogseou
and probably, Is . Substitution Prodae
Of ammonaia, nalogous to tEymethlan
&De.