and possessing higher grease- unattacked by many reagents which are usually capa- dissolving properties than those of naphtha; and as That phosphorus can be extracted from the raw and ble of combining with them. The author wishes to it can be produced at a low cost, it is expected that unmixed… … provided with a double-pole double-throw switch, and even for days, the iron still remains bright and unat- DIAGRAM OF ELECTRIC FURNACE, an apparatus for regulating the electric arc and heat tacked; in this case the return to the normal is slower. in the furnace at 32 steps, ranging from 30 volts…
Internet Archive · Public domain (published before 1931). Free to use for anything.