Mechanical Finger for use with a microscope

Invented by the diatomist Hamilton Lanphere Smith in 1866

 

Mechanical Finger. Invented by Hamilton L. Smith, Ohio in 1866 Mechanical Finger. Invented by Hamilton L. Smith, Ohio in 1866
Mechanical Finger. Invented by Hamilton L. Smith, Ohio in 1866 Mechanical Finger. Invented by Hamilton L. Smith, Ohio in 1866
Mechanical Finger. Invented by Hamilton L. Smith, Ohio in 1866

See the article On a Mechanical Finger for Use with the Microscope. Published in The American Journal of Science and the Arts, 1866.

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