CHemicar News,
Nov, 16, 1877.4 }
Osmium Oxysulphides.—E, y. Meyer.—T wo of these * Iridescent Glass.—Those of our readers who have
OTs pS, Os38,05.211;0 and (0s50;),.3H,0, were ub- time for gazing into shop-windows must have noticed a
Chey any aera 125 through a solution cf oan acid. recent addition to our fictile manufactures of a number of
rota which do not Ho oe ak: Gi with NHj com- srnamental vases, cups, bowls, &c., of clear white glass,
er elow 200°, covered with beautiful iridescent films of different colours,
Mineral Analyses-—C. Winkler.—Rosclith,— and marked at unconscionably dear prices. At first it
3R0,A5,04+4 21,0, a thought that the process Sone in submitting he
. ed Tee GL 3 1e action of a deoxidating flame, and that th
ow Ter of the So dn asserted by Skraup. | A solours—like those tiresome black shams that would ali
nearly pure CoCO. has ey FI in Spnmsng vays distigure our first attempts at test-tubes—was caused
I'he mineral termed bismutho-spirite is ascertained to be 3 he Telnition of tis lent but a spucifteation of the
pare carbanite Of BIEnak. Blog CO. The om S ne atent tells a different story. The Inventor of the process
% LHe BEANO-CITEIEs Frees YFalkenatein ise Le s M. L. Clémandot, a I'rench civil engineer, who has
1320,2U,04 1.0% S110 ‘atented it in France, England, and America. The prin.
i ail a dal tiple of the process appears to consist in submitting the
Oxysulpho.arsenite of Barium.—I.. I'. Nilson.—A tlass vessels to the action of dilute hydrochloric, sulcompound
of this chara@er was fouud in the mother-liquor phuric, or other acid, under a pressure of from two to six
rom which the salt, 2BaS.As,854511,0, had separated. atmospheres. M. Clémandot claims to be able to imitate
[ts composition is §BaS.2A8,5;0+611,0, and it is the he beautiful nacréous films on ancient glass which has
rst evidence of the existence of an oxy-sulphigle of the 9een submitted to the combined action of air and water
nvalent arsenic, for two or three thousand years; bat the ornamental
iessels already exhibited, althou sh very pretty, are a long
vay off the poorest specimens of Assyrian or Lgyptian
lass in any ordinary colicétion. Time is evidently an
mportant factor in bringing about this singular change.
-n any case M. Clémandot’s productions are very beautiul,
but we do not see why they should fetch such exorpitant
prices.
No. 39, 1877.
The principal artigle in this issue is an account of the
sarbonisation of the vegetable impurities in wool by means
of chloride of aluminiom, prepared, it is said, by the double
decomposition of barium chloride and aluminium sulphate.
Ihe precipitated sulphate of alumina, blanc fixe, is used
not merely as a pigment, for finishing white “cottons and
linens, in the paper manafa®ure, &c., ** but—horribile dictu
--even for the adulteration of flour,”
No. 40, 1877.
The leading article in this issue is devoted to the
lenainciation of a Belgian manufacturer who is charged
vith having forged Dr. Reimann’s signature to a circular
vhich he has issed.
A report, said to have originated in England, is being
spead to the effet that arsenious acid dissolved in glycerin
is now used as a mordant for a black dye upon cotton.
hemical Technology, or Chemistry in its
Ww Applications to the Arts and Manufa@ures. By Tuomas
RicHarRDSON and Hunky WATTS. Sccond Edition. illustrated with
wmerous Wood Engravings.
Vol. I, Parts 1 and 2, price 308., with more than 400 Illustrations.
Nature and Properties of Fucl: Secondary Produ@s obtained from
‘ucl: Production of Light: Secondary Produéts of the Gas Manulure,
Vol. I, Part 3, price 33s., with more than 300 Hiustrations.
Sulphur-and its Compounds: Acidimetry: Chlorincand its Bleaching
Tompounds: Suda, Potash: Alkalimetry: Grease.
Vol. I, Part 4, price 218., 300 IHlustratione,
_ Aluminium and Sodium: Stannates, Tungstates, Chromates, and
Silicates of Potash and Soda: Phosphorus, Borax: Nitre: Gun.
Powder: Gun Cotton
Vol. I, Part 5, price 36s.
¢ Prussiate of Potash: Oxalic, Tartaric, and Citric Acids, and Appens
lices containing the latest information, and pecifications relating to
the materials described in Parts 3 and 4.
** “rE AND Co. 20, King William Street, Strand, oo
VV ater-glase, or Soluble Silicates of Soda
and Potash, in large or small quantities, and either solid
or in solution, at ROBERT RUMNEY'S, Ardwick Chemical
Works Mancheretre
MISCELLANEOUS.
Society of Arts.—The programme of the arrangements
‘or the coming session has just been issued. The opening
neeting will be held on the 21st inst. At the second
nceting, on the 28th, a paper will be read on * The Telehone,”
by Prof. Bell, the inventor, and among the other
papers to be read before Christmas is one on * Freedom
in the Growth and Sale of the Crops of the Farm con.
sidered in its Bearings upon the Interest of Landowners
ind Tenant Farmers,” by J. B. Lawes, .R.S. Three
courses of ‘* Cantor Le&ures” are announced :—Firat
course, on ‘The Manufacture of Paper,” by William
Arnot, F.C.S.; second course, on “ The Application of
Photography to the Production of Printing Surfaces and
?iturcs in Pirment," by Thomas Bolas, I.C.S.; third
cofirse, on * Some Researches on Putrcfactive Changes,
ind their Results in Relation to the Preservation of
Animal Substances,” by B. W. Richardson, M.I),, I'.R.S.
he second and third courses do not commence till after
christmas, as is also the case with the first mectings of
the Chemical, African, and Indian Se@ions. An additional
course of three le@nres, on ** Explosions in Coal Mines,”
I8 10 be delivered by T. Wills, F.C.S., on three evenings
in Janay and February, It is stated that the cenference
Mm“ llealth and Sewage of Towns" is to be repeated,
and that a second “ Congress on Domestic Economy =
will be held this year at M-Wchester
JDATENTS.—Mr. Vaughan, F.C.S., British
“ Foreign, and Colonial PATENT AGENT. Special attention
riven to Inventions relating to Chemistry, Mining, and Mectaiivipy
‘Guide to Faventos: Pree by Post.—Ofhices, 67, Chancery Lane
ondan. W.C..and 8S. Houndeate . Darlineton
oT W. HART, Manufa@urer and Dealer ia
i. Apparatus and Chemicals for Scientific Pursuits. Lat oranry
Fitter and Furnisher Photographic Apparatus and Materials
anda Kivacr AND (rerrN (WrsT Sip) LLoNnax.
JOHN 1 Tr VTIN,
MICRO-ASSAY LABORATORY,
YORK CHAMBERS, YORK BUILDINGS, ADELPHI.
LONDON, W.C.
Analvrie of Fond, Water, and Drugs; Slide Preparations iiinstrating
Aduiterations, &c, Students can use the Laboratory on Thursdays
Write for Terms.
Laboratory houra—joam. tos pm. 3 pm. to 6 pm. ~
PATENTS. PATENTS.
ORERTSON, Broowman, and Co. (established
4 50 years) continue to obtain Patents for Inventione. Pamphiet
ontaining special advice, gratis or by post.—~166, Fleet Street
London
