Gem expert; born in New York City, Sept. 29, 1856; was educated in public schools and at Cooper Union.
In 1883 he was appointed special agent of the
United States Geological Survey.
He had charge of the department of mines in the
Paris Exposition of 1889, in the
Kimberley Exposition of 1892, and in the
World's
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Columbian Exposition of 1893, and was honorary special agent of mines in the
Atlanta Exposition of 1895, and in the
Omaha Exposition of 1898.
He made a special investigation of the occurrence of American pearls for the
United States Fish Commission, in 1892-98, and was an honorary special agent to the
commissioner-general of the
United States to the
Paris Exposition of 1900.
In 1889 he was decorated by the
French government officier de l'academie. Since his appointment to the
United States Geological Survey he has contributed the chapter on
The production of precious stones to the annual report on
Mineral resources.