Fs 
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6 _ Advertising Sheet of the 
New and most important work for all those con- 
cerned in fron Works. 
J. DOBSON, 
No. 106 Cuestnur Street, PuiraDeLputa, 
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 Buane and Watrer, 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. Ros- 
dence of J. C. Boorn, Ksq., 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 
apy s ~ most important subject. The great French work of 
Le Banc and Water, being confessedly the most coniplete that 
Plates are all drawn to a scale, which will enable any one to con- 
struct, by their means, whatever may be required. ie Essay on 
the Smehing of Iron with Anthracite Coal, by Mr. Roserrs, will 
be found very interesting; it is the production of a gentleman of 
talents, and of sound j ju games ig unw wearied research, who, highly 
avor is: j hy 
Cary: and 
ERTS, Esq., Civil Engineer—to be published under the superinten-| 
Master, as well as to every one coficerued, either directly or indi-| 
has yet spmared, it will be reproduced in this, with additions—the| 
ish slots aged 
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