. Transactions. 2 3« 783 TIME IN HOURS TIME IN HOURS. 2 3-4^678TIME IN HOURS 3 ^ s & 7esioTl ME IN HOURS COMMERCIAL CARBONIZING-MATEKIALS. 395 Table ^Y.—Material /. 910 1,600° F. fl cj a a^ mQ Grams. Percent. \ , 1 1 2 3 45 6 7 8 9 10 Depth of Carbon. Over Per Cent. Inches. Cent. to Per Cent. i 0.

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. Transactions. 2 3« 783 TIME IN HOURS TIME IN HOURS. 2 3-4^678TIME IN HOURS 3 ^ s & 7esioTl ME IN HOURS COMMERCIAL CARBONIZING-MATEKIALS. 395 Table ^Y.—Material /. 910 1,600° F. fl cj a a^ mQ Grams. Percent. \ , 1 1 2 3 45 6 7 8 9 10 Depth of Carbon. Over Per Cent. Inches. Cent. to Per Cent. i to Per Cent. Total. 1,750° F. 1,900° F. 1 2 3 4 5 6 0.

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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries