12 Advertising Sheet, &c. 
known for his talents and accuracy in research, has promised his 
valuable assistance. 
t is also intended to give abstracts of the most important recent 
patents relating to Iron, accompanied with critical remarks—the 
whole forming the most complete work on the subject that has yet) 
been published in any country—and the only one of the kind in the 
English language. . 
CONDITIONS. . : 
The work will be put to press as soon as there are 150 subscri- 
bers—and but a limited edition will be published. ; 
It will be published in 8 parts, each part to contain 8 or more 
very large folio plates, with the accompanying text. 
The price per part will be five dollars, payable on delivery. 
As it is desirable to put the work to press as early as possible, 
gentlemen who may wish to subscribe, will confer a favor by trans- 
mitting their names to the publisher without delay. . 
, 4 
: GEOLOGICAL DRAWINGS AND ILLUSTRATIONS. 
| Mr. ROBERT BAKEWELL would inform Professors of Col- 
-fleges, Principals of Academies, Lyceums, and other Literary Insti- 
tutions, that he keeps on hand Drawings and Diagrams, illustrative 
of the science of Geology, comprising Stratification, Metallic Veins,| 
ganic Remains, Active and Extinct Volcanoes, &c. &c. * 
[he drawings are if desired fixed on rollers, adapted for lectures-| 
Letters addressed to R. Bakewell, Instructor of Drawing and Per-| 
spective in Yale College, at Mr. Ebenezer Johnson’s, Chapel street,| 
New Haven, will be duly attended to. 
Drawings and Plans of every description copied with dispatch. 
New Haven, June, 1841. nee Site 
Mr. Bakewell’s drawings are excellent. —Eds. 
American Journal of Science and Arts. 
Tue following numbers of this Journal are wanted by the Editors, 
who will pay for them $1 each, or give in exchange current num-| 
as they a : 
they 
Mole: : aan a: ee | 
_ Number ly so ee 1 Aye a gy 
Entire No. 23,24. 27,28. 29. Bh) oly Mae 
eh, 20 NE REE TRV AVA - EKEK. § Bo 
Number) 1, Nite! Seikl> ‘aig 5; 8h 2 awe 
‘Entire No. 35. 45,46. 54. 55,56. 59,60. Sl | 
See ME eral e B. & B. Sumas. | 
