A HAND-BOOK 
OF 
CHEMICAL TECHNOLOGY, 
By RUDOLPH WAGNER, Ph. D., 
Prof of Chemical Technology at the University of Wurzburg. 
Translated and edited, from the Eighth German Edition, with Extensive Additions, 
By WILLIAM CROOKES, F. B.S. 
1 Vol., 8vo, 760 pages, 886 Engravings. Price, $3.00. 
** His book is, indeed, excellent in the department which above all others bears, and 
properly bears, the name of Chemical Technology, that is to say, the production of the 
crude materials used in industrial chemistry; and, second, the methods of that in- 
dustry.’’—Eugineering and Mining Fournal, 
“The work has eight divisions. The first treats of chemical metallurgy, alloys, and 
preparations—iron, steel, cobalt, nickel, copper, lead, tin, zinc, arsenic, silver, gold, 
platinum, etc.,; the second, of crude materials and products—carbonate of potassa, 
saltpetre, nitric acid, gun-cotton, common salt, sulphur, etc.; the third, of glass, 
ceramic ware, gypsum, lime, and mortar; the fourth, of vegetable fibres and their tech- 
nical application—hemp, cotton, paper, starch, sugar, wine, beer, vinegar, oils, cements, 
etc.; the fifth, of animal substances and their industrial application; the sixth, of dyeing 
and calico-printing; the seventh, of methods of producing artificial light; and the last, 
of fuel and heating apparatus. 
There is no one of fair intelligence employed in any of all the industrial pursuits, 
whether as owner or employé, who will not gain by Prof. Wagner's labor.”—North 
American and Gazette. 
“This is a valuable treatise on the materials and products of chemical industry, and 
with all the modern discoveries and appliances accurately described. It is of great 
value to those employed in the various arts and manufactures, as it presents in compact 
form what chemists require for the successful pursuit of their various avocations. The 
chapters on heat, light, and bread-making, might be profitably studied by house- 
holders."—TZroy Dazly Tinzes. 
“If there be any one who lacks a full appreciation of the importance of scientific 
knowledge and skill, to the success of practical industry, he will do well to study this 
book very carefully. No other work with which we are acquainted treats of chemical 
technology so extensively and thoroughly, or with such fullness of scientific knowledge. 
It discusses and explains all the processes of every kind of manufactures, in which ‘the 
nature of raw materials is usually altered.’ ’—A mevican Union. 
New York: D, APPLETON & CO., Publishers, 549 & 551 Broadway. 
