. Earth, sky, and sea . Fig. 24. Passage of thirty-six thin electric cables through the cabin wall forming the cable /, pass through the plug to enter the cabin. The thirty-six wires of this cable are insulated one from the other by cotton and the whole cable is carefully coated with paraffin. The plug is prolonged by a tube b closed by a plate a pierced with thirty- seven holes. The base of the head is filled with Araldite D : above this [ 175 ]

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Keywords: ., book, bookcentury1900, bookpublishernewyorkoxforduniversitypress