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Scientific American, Vol. 28, No. 23 (June 1873) (1873)

leaf 4

An illustration from Scientific American, Vol. 28, No. 23 (June 1873), 1873, leaf 4
11°. The The seal cup is charged with tar, which permits the mov- vision of the Sutro Tunnel, which will cut and drain the lode able dip pipe to be lifted into or out of the main. It will be at a depth of 2,000 feet, the Comstock would soon have to seen that the lid cannot be removed from the… … the dip. When the retort is again charged, and the lid on the line 2, r s. The column of quicksilver, m n, reaches Arizona has, as yet, received no extensive developments, fastened by bearing down the handle of the lift, the lid is and only claims a place among the list of mother lodes on thu=,…

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