U.S. Coast and Geodetic Survey, Jones, Ernest Lester, 1876-1929 · Washington : Govt. Print. Off. · leaf 84
Fig. 29.—THE SUBMERGED WASHINGTON MONUMENT (PINNACLE ROCK), HEIGHT650 FEET, FOUND IN ALASKAN WATERS IN 1915 BY THE WIRE DRAG. BUT 17 FEETOF WATER COVERS THIS PINNACLE. THE WASHINGTON MONUMENT WE KNOWSO WELL IS 555 FEET. Special Publication No. 38. … Fig. 30.—TIDE-PREDICTING MACHINE. y .^j//^
Charts, diagrams, etc
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