[51] “[Lives of George and Robert Stephenson],” by Samuel Smiles. New York and London, 1868.
[52] Vide “A Description of the Safety-Lamp invented by George Stephenson,” etc., London, 1817.
[53] The American chilled wheel of cast-iron, a better wheel than that above described, has never been generally and successfully introduced in Europe.
[54] Smiles.
[55] One of these sectional boilers is still preserved in the lecture-room of the author, at the Stevens Institute of Technology.
[56] “History of the First Locomotives in America,” Brown.
[57] “Ross Winans vs. The Eastern Railroad Company—Evidence.” Boston, 1854.
