. The Popular science monthly . Photo, C. R. Toothaker, Phila. Commercial the Crude Pitch ox Caes. Crude Dry Tercent. Per Cent. Water and gas, volatilized at 100° C Bitumen soluble in cold carbon disulphide Bitumen retained by mineral matter 3 .3 Mineral matter, on ignition with tricalcium-phosphate . Water of hydration in clay and silicate Composition of the Asphalt An examination of the asphalt shows that it is one of extreme uni-formity in composition. It consists of, according to the most refinedmethods of analysis, from whatever pa

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. The Popular science monthly . Photo, C. R. Toothaker, Phila. Commercial the Crude Pitch ox Caes. Crude Dry Tercent. Per Cent. Water and gas, volatilized at 100° C Bitumen soluble in cold carbon disulphide Bitumen retained by mineral matter 3 .3 Mineral matter, on ignition with tricalcium-phosphate . Water of hydration in clay and silicate Composition of the Asphalt An examination of the asphalt shows that it is one of extreme uni-formity in composition. It consists of, according to the most refinedmethods of analysis, from whatever part of the deposit it is taken:. Photo, C R. Toothaker, Phila. Commercial the Crude Pitch on Cars. THE POPULAR SCIENCE MONTHLY

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