[27] Appleton’s “Cyclopedia of American Biography.”
[28] “The Progress of the City of New York during the last Fifty Years,” lecture by Charles King, President of Columbia College.
[29] H.P. is used here and subsequently to indicate horse-power.
[30] “The Marine Steam Engine,” by Sennett and Oram.
[31] Appleton’s “Cyclopedia of American Biography.”
[32] Illustrated London News, 1843.
[33] “Naval Development of the Century,” by Sir N. Barnaby; and “Two Centuries of Shipbuilding.”
[34] The Artizan, Sept., 1855.
[35] “The Encyclopædia Britannica.”
[36] “Thames Ironworks’ Historical Catalogue,” 1905.