ast upon the outer main current into the line, and as this has sufficient is anchored to the bottom, and floats at a pre-determin- shell. Anchored to the mine, and floating above it, at force to pass the resistance and ignite the fuse, the a depth below water that is less than the draft of ed depth… … Battery ef 8 and 10-inch Rapid-fire battery to prevent countermining. Field of ground mines, showing submerged electric- disappearing guns. contact fluating buoys attached. an automatic mine of the kind that is claimed to have which is placed the electric circuit closer. The upper one, the mines…
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