Transactions . Scale, 40 Feet to 1 Inch. GREAT WESTERN O.—CROSS-SECTION OF PLACE OF AIR-MEASUREMENTIN CHIMNEY OF GUIBAL FAN. FlG. 9. —CROSS-SECTION OF PLACE OF AIR-MEASUREMENT IN CHIMNEY OF SCHIELE FAN. Scale. 10 Feet to 1 Inch.

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Keywords: ., book, bookcentury1800, booksubjectmineralindustries, bookyear1887