, each 11 feet in diameter and 12 feet that a body of metal lying in the plane of the coil will secondary, S', over those in the secondary, 8. long. The idea of applying the balance to the detection of | not affect it. ———______2+4+-—______ + metals has been worked out by Captain McEvoy, who has… … - Fig. 5—ELECTRICAL ORE FINDER. THE STEEL STEAMER CHOCTAW. and bottom, neither end requiring to be opened, nor The builders of vessels for the freight business on the back of the casing, the barrel, or its plunger need- the great northern lakes are sharply competing with actual apparatus is…
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![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-313-137.webp)
