For
Whitney's contribution to machine shop methods, see Olmsted's
"Memoir" already cited and Roe and Woodworth, already cited. For
Blanchard, see Dwight Goddard, "A Short Story of Thomas
Blanchard" in "Eminent Engineers" (1905), and for Samuel Colt,
see his own "On the Application of Machinery to the Manufacture
of Rotating Chambered-Breech Fire Arms, and Their Peculiarities"
(1855), an excerpt from the "Minutes of Proceedings of the
Institute of Civil Engineers", vol. XI (1853), and Henry Barnard,
"Armsmear; the Home, the Arm, and the Armory of Samuel Colt"
(1866).
CHAPTER IX
"The Story of Electricity" (1919) is a popular history edited by
T. C. Martin and S. L. Coles. A more specialized account of
electrical inventions may be found in George Bartlett Prescott's
"The Speaking Telephone, Electric Light, and Other Recent
Electrical Inventions" (1879).
For Joseph Henry's achievements, see his own "Contributions to
Electricity and Galvanism" (1835-42) and "On the Application of
the Principle of the Galvanic Multiplier to Electromagnetic
Apparatus" (1831), and the accounts of others in Henry C.
Cameron's "Reminiscences of Joseph Henry" and W. B. Taylor's
"Historical Sketch of Henry's Contribution to the
Electro-Magnetic Telegraph" (1879), Smithsonian Report, 1878.
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