. The Popular science monthly . Photo, C R. Toothaker, Phila. Commercial the Crude Pitch on Cars. THE POPULAR SCIENCE MONTHLY. Photo, C. R. Toothaker, Phila. Commercial of Pitch by Aerial Cable from Refinery to Pier. The average composition of samples taken on circles 200, 400, 600,800, 1,000 and 1,100 feet from the center of the deposits, and for theaverage material from the entire depth of the boring, as determined byroutine methods, was found, after drying the material to free it fromthe water which is present, to be as follows: Average Composition of Tr
. The Popular science monthly . Photo, C R. Toothaker, Phila. Commercial the Crude Pitch on Cars. THE POPULAR SCIENCE MONTHLY. Photo, C. R. Toothaker, Phila. Commercial of Pitch by Aerial Cable from Refinery to Pier. The average composition of samples taken on circles 200, 400, 600,800, 1,000 and 1,100 feet from the center of the deposits, and for theaverage material from the entire depth of the boring, as determined byroutine methods, was found, after drying the material to free it fromthe water which is present, to be as follows: Average Composition of Trinidad Lake Pitch in Circles Circle 2, 200 ft. from center Circle 4, 400 ft. from center Circle 6, 600 ft. from center Circle 8, 800 ft. from center Circle 10, 1,000 ft. from center,Circle 12, 1,100 ft. from center-General average Circle 14, 14,000 ft. from center. Bit. by CS2,Per Cent. MineralMatter, Organic notSoluble, Soluble inNaphtha, Per Cent. Per Cent. Per Cent. 36
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