riving tunnels bore fropi three to aided by a higher temperature than that commonly employed, through 417-J feet of very hard quartz and feldspar rock ; the five holes simultaneously, each in a different direction if and the consequent greater solvent power of the suds, the expensa for diamonds in… … the hands are spared the discomfort and injury referred to, and the temperature of the suds may be maintained as high as is possible in an open tab. The device is shown in detail in Fig. 2. It will be seen, it is simply a rubber, consisting of twopartsin a suitable frame, which clasps the clothes…
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