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Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
nd the shot or lead, which is perforated for the reception of the rod, and are secured to a washer e beneath it. On striking bottom, the rod is thrown up, releasing the wires from the shot and enabling the rod to be drawn up by itself. A small Stellwagen cup may be attached for procuring specimens of bottom. This was the first device by which specimens of bottom from great depths — 2,000 fathoms or more — were secured. These were found to consist principally of minute infusorial shells, whichndicator, may be seen the aspect of the heavens at any day and hour, and also the hours of rising and setting of any stars, and the times of their meridian passages. Stellar indicator. Stell′wa-gen-cup. An instrument invented by Lieutenant Stellwagen, United States Navy, for bringing up specimens of bottom in sounding. It consists of a hollow cone attached to the bottom of the sounding-lead, and having a flexible cap over which may be an inflexible disk, rising and allowing the mud, <