http://pec.lib.wvu.edu/record/P12332[1896?]On rating electric-power plants upon the heat-unit standard.<p> Pamphlet. "To be presented at the Hartford meeting (May, 1897) of the American Society of Mechanical Engineers, and forming part of Volume XVIII, of the Transactions."</p>Aldrich, William Sleeper, 1863-Electric power-plants.14256