Mechanical Log

Description
William Petit Trowbridge was an 1848 graduate of the U.S. Military Academy who, while employed by the U.S. Coast Survey, worked to develop improved methods for determining the speed of a ship and the distance to the sea bottom. This log came from Columbia University where Trowbridge served as professor of engineering in the years 1877-1892. Although the instrument is not signed, the box is marked "Ship’s Log and Sounding Instrument Combined. Devised by W. P. Trowbridge in 1863".
Location
Currently not on view
Measurements
overall in cardboard tube: 23 1/2 in x 2 9/16 in; 59.69 cm x 6.50875 cm
ID Number
PH.322965
catalog number
322965
accession number
249200
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Data Source
National Museum of American History, Kenneth E. Behring Center

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