coast de- the entrance, in the expectation that the capture or destruction of these ships would probably mean the fense, and, unlike all other means of defense, its cost is out of all proportion to the damage it can inflict. immediate close of the war—an expectation which It is pre-eminently the… … of those which were used in the defense of Baltimore This group consisted of three mines, placed 100 feet. SUBMARINE MINES IN PLACE, WITH ELECTRO- Harbor, is 250 pounds of explosive. When it is to be apart, in a triangle, and connected with the firing case- CONTACT BUOYS ATTACHED. used as an…
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