A TREATISE 
ON THE 
MANUFACTURE AND WORKING OF STEEL; 
Being a Hand-book for the Blacksmith, Die Sinker, Hardware 
Manufacturer, &c, &c. 
BY F. OVERMAN; AUTHOR OF A TREATISE ON IRON, 
WITH 28 ENGRAVINQS ON WOOD, CLOTH, GILT, 75 CENTS. 
A TREATISE ON MOULDING AND CASTING ; 
BEING! A HAND-BOOK FOR MOULDERS IN SAND, CEMENT, AND METAL FORMS; 
For Founders of Iron, Brass, Copper, Tin, Zinc, and other metals. 
WITH 42 WOOD ENGRAVINGS. 
BY FREDERICK OVERMAN. 
Cloth, gilt, 88 cents. 
" Moulder and Iron Founder's Guide. — This is the title of a neat volume by Fre- 
derick Overman, mining engineer, and author of several excellent works, and pub- 
lished by A. Hart, Philadelphia, a gentleman who has published and does publish 
some of the best seientific works in Ameriea. We believe this is the first work on 
the same subject, published in America. It embraces a description of the different 
kinds of moulding and the materials, such as Green Sand, Open Sand, &c. The art 
of moulding is described in detail : the melting of metals, the qualities of the iron, 
the art of managing the moulds, &c , are all described. Receipts for alloys, bronzing, 
tinning, &c are appended. It is illustrated with numerous engravings. As mould- 
ing is very extensively practised in our country, this work will no doubt, as it should, 
have a very extensive sale, for it is an able and useful work." — Scientific American. 
THE AMERICAN 
COMPLETE COTTON SPINNER, 
AND MANAGER'S AND CARDER'S GUIDE. 
BY THE LATE ROBERT II. BAIRD. 
IMPROVED AND BROUGHT DOWN TO THE PRESENT TIME, BY A " PRACTICAL MANAGER." 
Cloth, gilt, SI 00. 
"This is a neat book, got up in a creditable style, by A. Hart: it is compiled from 
the papers of the late Robert II. Baird. It is not illustrated, but it gives the dimen- 
sions and speed of machinery, draught and twist calculations, Ac, together with rules 
and examples for making changes in the size, and numbers of roving and yarn. Mr. 
Baird was widely known as an expert cotton spinner, but additions are made to his 
papers so as to bring the subject up to the preseuttime. It embraces the arrangement 
of the different kinds of machinery, manner of conducting a factory, remarks on cotton, 
and the cleaning of it, and some very useful remarks about water wheels. The whole 
of the calculations are made in simple arithmetical numbers, plain, and clear, with 
no design to show learning: thereby showing the most of it, with every intention to 
instruct, and none to mislead by false formula 1 . It is a book for which Mr. Hart has 
our sincere thanks, as a work capable of doing a great deal of good." — Scientific 
American. 
