Chapter VI: The Master Worker

(p. 112). High-pressure steam. The work referred to is Leupold's _Theatrum Machinarum_, 1725.

(p. 122). Rotary Engines. The quotation is from the report of the Victoria and Albert Museum above cited.

(pp. 127, 128). Turbine engines. The quotation is from an anonymous article in the London _Times_, August 14, 1907.

(pp. 129, 130). Turbine engines. The quotation is from an article on _Motive Power Appliances_ in the _Twelfth Census Report_ of the United States, vol. X., part IV., by Mr. Edward H. Sanborn.