Rear Admiral George Eugene Belknap 

 U.S. Navy (1832- I903> 



Belknap perfeelcd the piano-wire sounding tnaehine invented by 

 Sir William Thomson. The sloop I'liscarora. under Belknap's 

 command, was assigned a two year mission (1X73 - 1874) to 

 survey a table route from the United States to .lapan. Ihe first 

 ship to be equipped with a Thomson Sounding Machine, the 

 Tuscarora successfully demonstrated the use of wire over rope 

 for taking soundings. 



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