Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 366
lO IeetAht/. •,///A- ///Sf/i///, /•>riJ3. ^o/.jj:/y^//, .7 ri.fjT. … Report 071 the Use of Heated Air in Iron TVorks. 351 When this metal is run into pigs, its grain is coarse, and thestructure scaly, and very brilliant. The grain of this iron be-comes much finer when cast into thin pieces, or founded a secondtime, and in this state it is remarkably soft under the…
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