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MATHEMATICAL INSTRUMENTS: Their Construction,
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New Edition. Demy STO, I/. 5^., half-bound.
PUBLISHED BY CROSBY LOCKWOOD & CO. 21
SCIENCE AND ART.
The Construction of the Organ.
PRACTICAL ORGAN BUILDING. By W. E. PICKSOX,
M. A., Precentor of Ely Cathedral. Crown 8vo, 5*. cloth.
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MECHANICAL DENTISTRY. A Practical Treatise on the
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22 WORKS IN SCIENCE AND ART, ETC.,
ELECTRIC LIGHT : Its Production and Use, embodying plain
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ELECTROPLATING: A Practical Handbook. By J. W.
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The Alkali Trade Sulphuric Acid, &c.
A MANUAL OF THE ALKALI TRADE, including the
Manufacture of Sulphuric Acid, Sulphate of Soda, and Bleaching
Powder. By JOHN LOMAS, Alkali Manufacturer, Newcastle-upon-
Tyne and London. With 232 Illustrations and Working Draw-
ings, and containing 386 pages of text. Super-royal 8vo,
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their Managers and Foremen as a useful guide in their daily rounds of duty.
SYNOPSIS OF CONTENTS.
Chap. I. Choice of Site and General
Plan of Works II. Sulphuric Acid-
Ill. Recovery of the Nitrogen Com-
pound*, and Treatment of Small Pyrites
IX. Carbonabng or Finishing X. Soda
Crystals XI. Refined Alkali XII.
Causcic Soda XIII. Bi-carbonate of
Soda XIV. Bleaching Powder XV.
IV. The Salt Cake Process V. Legis- I Utilisation of Tank Waste XVI. General
lation upon the. Noxious Vapours Ques- | Remarks Four Appendices, treating of
lion VI. The Hargreaves' and Jones'
Processes VII. The Balling Process
VIII. Lixiviation and Salting Down
Yields, Sulphuric Acid Calculations, Ane-
mometers, and Foreign Legislation upon
the Noxious Vapours Question.
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THE COMMERCIAL HANDBOOK of CHEMICAL ANA-
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24 WORKS IN SCIENCE AND ART, ETC.,
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Dr. Lardner s Handbooks of Natural Philosophy.
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A MANUAL of ELECTRICITY ; including Galvanism, Mag-
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Geology and Genesis.
THE TWIN RECORDS OF CREATION ; or, Geology and
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