23 
PUBLISHED BY CROSBY LOCKWOOD & Coa. 
Lhe Alkali Trade—Sulphuric Acid, Sc. 
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, 
2202s, Od, cloth, 
This work provides (t) a Complete Handbook for intending Alkali and Sulphuric 
Acid Manufacturers, and for those already in the field who desire to improve their 
Plant, or to become practically acquainted with the latest processes and development 
of the trade ; (2) a Handy Volume which Manufacturers can put into the hands o 
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— 
III. Recovery of the Nitrogen Com- 
pounds, and Treatment of Small Pyrites 
—IV. The Salt Cake Process—V. Legis- 
lation upon the, Noxious Vapours Ques- 
tion—VI. The Hargreaves’ and Jones’ 
Processes—VIT. The Balling Process— 
VIII. Lixiviation and Salting Down— 
IX. Carbonating or Finishing—X. Soda 
Crystals — XI. Refined Alkali — XII. 
Caustic Soda — XIII. Bi-carbonate of 
Soda— XIV. Bleaching Powder — XV. 
Utilisation of Tank Waste—XVI. General 
Remarks—Four Appendices, treating of 
Yields, Sulphuric Acid Calculations, Ane- 
mometers, and Foreign Legislation upon 
the Noxious Vapours Question. 
“The author has given the fullest, most practical, and, to all concerned in the 
alkali trade, most valuable mass of information that, to our knowledge, has been 
published in any language.” —Euxgzneer. 
“ This book is written by a manufacturer for manufacturers. The working details 
of the most approved forms of apparatus are given, and these are accompanied by 
no less than 232 wood engravings, all of which may be used for the purposes of con- 
struction, Every step in the manufacture is very fully described in this manual, and 
each improvement explained. Everything which tends to introduce economy into 
the technical details of this trade receives the fullest attention. The book has been 
produced with great completeness.” —A theneumne. 
‘*'The author is not one of those clever compilers who, on short notice, will ‘read 
up’ any conceivable subject, but a practical man in the best sense of the word. We 
find here not merely a sound and luminous explanation of the chemical principles of 
the trade, but a notice of numerous matters which have a most important bearing 
on the successful conduct of alkali works, but which are generally overlooked by 
even the most experienced technological authors. This most valuable book, which 
we trust will be generally appreciated, we must pronounce a credit alike to its author 
and to the enterprising firm who have undertaken its publication.”~Chemical 
Review. 
Chemical Analysis. 
THE COMMERCIAL HANDBOOK of CHEMICAL ANA. 
LYSIS; or Practical Instructions for the determination of the In- 
trinsic or Commercial Value of Substances used in Manufactures, 
in Trades, and in the Arts. By A. Normanby, Author of ‘ Prac- 
tical Introduction to Rose’s Chemistry,” and Editor of Rose’s 
** Treatise on Chemical Analysis.” Mew Zdition. Enlarged, and 
to a great extent re-written, by HENRY M. Noap, Ph. D., F.R.S. 
With numerous Illustrations. Cr, 8vo, 12s. 6d. cloth. 
“We recommend this book to the careful perusal of every one; it may be truly 
affirmed to be of universal interest, and we strongly recommend it to our readers as a 
guide, alike indispensable to the housewife as to the pharmaceutical practitioner,”— 
Medical Times. 
“Essential to the analysts appointed under the new Act. The most recent results 
are given, and the work is well edited <nd carefully written.” —Nature, 
