File:Transactions (1871) (14761867226).jpg

Identifier: transactionsmining44amer (find matches)
Title: Transactions
Year: 1871 (1870s)
Authors: American Institute of Mining, Metallurgical, and Petroleum Engineers
Subjects: Mineral industries
Publisher: New York (etc.)
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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Text Appearing Before Image:
Fig. 24.—Newberry High No. 3 Iron.Upper Corner of Pig. 3.50 PerCent, of Total Carbon. Etched.Magnified 38 Diameter?.
Text Appearing After Image:
Fig. -o.—Newberry Low-Larbon Iron. Fig. 2G.—Newberry Low-Carbox Iron.Etched. Magnified 100 Diameters. Etched. Magnified 450 Diameters. EFFECT OF HIGH CARBON ON CHARCOAL-IRON. 339 words, the most accentuated condition of cleavage we couldfind. This cleavage condition is usually manifested particu-larly in the upper corners of the pig, and from one of thesecorners of this pig we took a specimen, which was polished andphotographed without etching, so as to show the laminationand orientation of the graphite. This is shown in Figs. 9 and10. The same sample, etched and at the same magnification,is shown in Fig. 11, and under higher magnification in Fig. 12. In order to prove if a contrast existed, we took a similarcorner of the pig shown in Fig. 2 and prepared a specimen inthe same way. The result is shown in Fig. 13, unetched. It will be seen at a glance that the laminated condition ismuch less and the graphite much less oriented in this speci-men than in the other. This iron being a h

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