6 Advertising Sheet of the 



New and most important work for all those 



cerned in Iron Works. 



J. DOBSON, 



No. 106 Chestnut Street, Philadelphia, 



Proposes to publish by subscription, the following most important 



work. 



A COMPLETE THEORETICAL AND PRACTICAL TREATISE 



ON THE 



MANUFACTURE OF IRON. 



Comprising a full account of its different ores, their analyses, 

 &c, the various processes and ample descriptions of the Furnaces, 

 Forges, Rolling Mills, &c. &c, with nearly 70 very large plates, 

 which are all drawn to a scale, and may be considered as working 

 drawings — to include a translation of the whole of the great work 

 on Iron of Messrs. Le Blanc and Walter, and contain all its nu- 

 merous plates, with additions from other sources, and numerous 

 analyses of the Coal and Iron Ores of this country and Europe, to- 

 gether with the Statistics of the Coal and Iron of the United States, 

 and abstracts of the most important Patents relating to Iron, with 

 critical remarks — also, an Essay on the Smelting of Iron with An- 

 thracite Coal, as now practiced in Pennsylvania — by S. W. Rob- 

 erts, Esq., Civil Engineer — to be published under the superinten- 

 dence of J. C. Booth, Esq., Professor of Chemistry applied to the 

 Arts, at the Franklin Institute. 



It is scarcely necessary to speak of the value of a work such as 

 this, which must be of the greatest interest to the Practical Iron 

 Master, as well as to every one concerned, either directly or indi- 

 rectly, in this most important subject. The great French work of! 

 Le Blanc and Walter, being confessedly the most complete that 

 has yet appeared, it will be reproduced in this, with additions — the 

 Plates are all drawn to a scale, which will enable any one to con- 

 struct, by their means, whatever may be required. The Essay on 

 the Smelting of Iron with Anthracite Coal, by Mr. Roberts, will 

 be found very interesting ; it is the production of a gentleman of 

 talents, and of sound judgment and unwearied research, who, highly 

 favored by his position, has given the subject much attention. The 

 numerous Analyses of the Coal and Iron Ores, both of our own 

 country and Europe, will afford much interesting and useful infor- 

 mation ; while the statistical portion will be drawn from the most 

 authentic sources. Richard C. Taylor, Esq., a gentleman well 



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