Bulletin . U83 J9J Q o O O ^ co cn — EFFECT OF HEATING MINEAIR. It is to be noted, however,that the increase in tempera-ture was greatest when theoutside temperature was amount of heat suppliedbeing uniform, a constant in-crease in temperature shouldbe expected if there were nodisturbing elements present. IIIIHI All l il IIUI II riN r, II A I I /IV. .1. RADIATOR AND STEAM PIPE IN USE, MONONGAH NO. 8 MINE.

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou