. Discovery. Science. DISCOVERY 291 of furnace more commonly used is a rotatory furnace, the round hearth of which is kept gentl}- rotating as the material is heated bv means of a fire beneath. furnace floor into the pit. The other furnace some- times employed is of the ordinary reverberatory type, in which the flames actualh' play over the surface of. Fig. I.—general VIEW OF .-iX ARSENIC ;. The mundic is fed in through a hopper at the top, and the mundic which is " ravelled " from the side by a the arsenic burner is able to watch the process through pole some eight or nine f
. Discovery. Science. DISCOVERY 291 of furnace more commonly used is a rotatory furnace, the round hearth of which is kept gentl}- rotating as the material is heated bv means of a fire beneath. furnace floor into the pit. The other furnace some- times employed is of the ordinary reverberatory type, in which the flames actualh' play over the surface of. Fig. I.—general VIEW OF .-iX ARSENIC ;. The mundic is fed in through a hopper at the top, and the mundic which is " ravelled " from the side by a the arsenic burner is able to watch the process through pole some eight or nine feet long, wielded by the furnace-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original London [etc. ] Professional and Industrial Pub. Co. [etc. ]
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