FrHE
CHEMICAL NEWS
AND
JOURNAL OF PHYSICAL SCIENCE
-_ Baie by ps) (WITE WHICH IS INCORPORATED THE “CHEMICAL GAZETTE") [ hirty. tears.
Vol. 44.—No. 1135.] Ser Friday, August 26, 1881. ms [Foeritai, aa.
CONTENTS.
ARTICLES :~— Pace
Estimation of Potassium as Platinum Salt, by David Lindo...... ¢7
On a Modification of the Ele@ric Lamp, by M. Jamin............ 09
Note Concerning the Acton of the Organic Matter not Sugar
Occurring in Cane and Beet Products, on Alkaline Solution of
Copper Oxide, ET —, 99
On the Relation of Moisture in Air to Health and Comfort, by
Robert Briggs, C.E., Cor, Mem. Am, Inst. of Archite@s....... 100
The Spiral Balance, by C. F. Cross.....cu.ceeesuecsnrossreressas I0T
CorRRESPONDENCE.—The History of Chemistry— The Fraudulent
Alteration of Cheques—Disulphide of Carbon in Commercial
Benzol, and its Utilisation. ..eeseeeresseeensnn- coca Vee. 104
Caemical, NOTICES FROM FOREIGN SOURCES... --es 10%
CAPPER PASS AND SON, BRISTOL,
ARE BUYERS: OF
LEAD ASHES, SULPHATE OF LEAD,
LEAD SLAGS, ANTIMONIAL = LEAD,
COPPER MATTE, TIN ASHES, &c.,
and DROSS or ORES containing
COPPEP, LEAD, AND ANTIMONY.
A Chemist, speaking perfectly English (having
been born and brought up in America), Graduate of a German
University, and at present engaged in a German Alkali Works, seeks
a similar situation in England. Good references on demand.—
Address to Dr. C. Bottler, Chemical Works, Griesham, near
Frankfort-on-the-Maine,
A Young Gentleman, having just completed
three years’ work at a praical laboratory, desires an engage.
ment as Chemist or Assistant Chemist.—Address, A, A.,, CHEMICAL
News Office, Boy Count, Ludeate Hill T.ondon, F.C
City of London, corner of Cheapside & King St.
(In course of construction), HANDSOME LOFTY SHOP,
with Good GALLERY, to be Let, with or without the excellent light
BASEMENT, forming large Showroom, &c., suitable for a Chemist,
SerArply to Mr. Mead, on the premises. or at 102, Southwark Street,
VV anted, by a Practical Vitriol and Manure
Maker, a Situation as Manager or Assistant, or would take
charge of an Acid Plant. Advertiseris a good Analyst, First class
testimonials, Salary moderate.—Address, O. 88, care of C. Birchall,
Advertising Agent, Liverpool.
xy LT
VV anted, a Young Chemist who is desirous
of gaining experience in the analysis of iron and steel and
general laboratory work as Assistant in a large Metallurgical Laboratory.
A small premium required for the first year.—Apply, Beta,
Cururcar, News Office. Boy Court, Ludeate Hill. London. E.C.
VV anted, an Engagement as Analytical Chemist
bya Geatleman (German) of considerabie experience,
acquired as Private Assistant to Professor Fresenius, of Wiesbaden,
Holds at present a position as tester in one of the first Silver Mining
Companies in Germany, Highest references.—Address, T. J. 01,
Deacon's Advertising Office. 7-1. Leadenhall Street. B.C.
BRADY & MARTIN,
NEWCASTLE-ON-TYNE,
Will, on application, forward Catalogues of Chemical and Physica;
Apparatus, Pure Chemicals Special Reagent Bottles with Embosser
Labels, Nitrometer, &c., &c.
GRIFFIN’S
CHEMICAL HANDICRAFT.
SECOND EDITION,
Price 4s. 7d. post free.
CATALOGUE OF CHEMICAL APPARATUS:
.
ILLUSTRATED, CLASSIFIED, DESCRIPTIVE.
Demy 8vo., 480 pp., Illustrated with 1600 Woodcuts.
Most complete and cheapest List of Apparatus,
JOHN J. GRIFFIN and SONS, 22, Garrick Street,
London, W.C.
THE JOURNAL OF SCIENCE
for AUGUST (Price 1s. 6d.), include—
The Centre of Gravity of the Earth, and its Effet on Astronomical
Observrtions, By Col. A.W, Drayson, R,A., F.R.A.S.
Geology as a Science and an Art. By C. Lloyd Morgan.
The Source of Eleétric Energy. By Charles Morris,
Sham Employers. By J. Hepburn Davidson.
Sanitary Reform and ’ifs Vagaries: the Sanitary Institute of Great
Britian.
On the Probable Extension of Solar Physi to Matters AffeCting the
Agriculturist, Merchant, and Man of Science. By A. H. Swinton.
Analyses of Books. Correspondence. Notes.
London: 3, Horse-Skoe Court,Ludgate Hill.
just publirhed,
TOWNSON AND MERCER’S Revised and
Enlarged Catalogue of Chemical and Scientific Apparatus and
ure Chemicals, including Air-pump, Eleérical and Galvanic Appacatus,
and Mechanics, with all the recent improvements in Chemical
Apparatus to_the present date. Illustrate with upwards of 1100
Woodcuts, Demy 8vo., 250 pages, alphabetically arranged. The
cheapest and most complete catalogue in the trade.
Price 2s. 6d. Post free 2s. 11d.
TOWNSON & MERCER,
89, BisnorsGaTE St. WITHIN, LONDON, E.C,
BRITISH ASSOCIATION FOR THE
ADVANCEMENT OF SCIENCE.
22, ALBEMARLE STREET, LONDON, W.
The NEXT ANNUAL GENERAL MEETING will be held at
YORK, commencing on WEDNESDAY, AUGUST 31.
President Elect :—
SIR JOHN LUBBOCK, Bart,, M.P., D.C,L, F.R.S.
Notice 10 CONTRIBUTORS OF MeMolIrs.—Authors are requested
to give early notice of their intention to offer Papers.
Information about lodgings and other local arrangements may be
sbtained from theLocal Secretaries, 17, Blake Street, York,
_G. GRIFFITH, Acting Secretay, York. _
PYROLIGNEOUS ACID,
\ A Janted, for Canada, an Assistant or Fore.
man for a Wood Distillery, Practical experience ia the
manipulation of saw-dust, and competence to superintend erection of
the necessary plant are indispensable.—~Apply, with references, to
No. 1135, Chesical News Office, Boy Court, Ludgate Hill,
London, E.C,
¢ I ———
TO MANUFACTURERS.
Engagement Wanted. Many years Practical,
Chemical, Mechanical, and General Experience in the Management
of Works and Workmen. Charge of a small chemical factory
sreferred. Willing to be useful in any capacity,-—Address, “ Nitric,"
SHEMICAL News Office, Boy Court, Ludgate Hill, London, E.C.
A
