Putnam, G. R. (George Rockwell), b. 1865 · New York, J. Wiley & Sons; [etc.] · leaf 62
FIG. 14. THE LUCAS AUTOMATIC SOUNDING MACHINE FOR DEPTHS TO 5000FATHOMS, WITH ENGINE. … FIG. 15. THE SIGSBEE SOUNDING MACHINE ON A SURVEYING VESSEL. (45)
Nautical charts
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