qc TOT CB NEST 
9X3 1x. 7 Gero upon the Art of making Steel. a the 
i iis E ERE Danter Drees, iP, A. A 
ay ral s 
ng feel i is an tale ub commerce, and of great ue both i in 
-the arts, manufactures and hufbandry of every nation ; 
and as we have the beft of iron already manufactured in Series, 
it is thought that the manufacturing. SE ftecl of a.good quality, 
. deferves. the attention and gement of thofe who wifh the- 
-welfare of the United States.. What time I could redeem from 
_ other neceffary bufinefs for feveral years paft, has been employed. 
- in.fuch difquifitions and experiments, as might tend to facilitate : 
the art of making fteel, and others near akin to it. . 
Thofe writers upon the fübje&: mhich Thave metwith tell u us, . 
¿that the pr difference betyyeen.iron and fteel “confifts in- 
‘this, ‘That the wis is com ined. with: 4 greater quantity .of - 
. phlog ifton than the. former. Phlogifton exifts i in all. inflamma- 
ble fabftances, and. in fome that are'not inflammable- "mr. - 
coal, and the. coals of bones, horns and hoofs of animals, have 
“been: ufed as fit fubftances for e peres g: Phlogifton to s 
Aron in. making - mecs 
Stecl is fometimes made by ‘sae of ore. or r pig-iron; The : 
alleable iron, - 
Pf rt 
. method is fimilar to that of reducing } pig»iron t tor 
with this difference, that.as flecl requires more phlogifton than . 
_is neceflary, to iron, all ‘the means muft be made ufeof. that are 
capable of introducing i into ‘the i iron, a great. dell of phlogifton ; 
“that is, by ‘keeping | it, while i in 1 fulon, encompafied with ‘an 
: abundance of charcoal, "E. ; 
The other method of making feel i is by cementation, ag it is 
called |; that. ds, to convert, bar-iron into fteel ; whichii i$ done 
| _ bya a “cement me ade of thofe fubstances. which. contain the; greater 
quantity y of phlogifton.- Put the barziton with this cernent in- 
ta» 
