W. L. Alden, A Tricycle for Two (1894)
“ Well, the same man could run a mile with the consumption of only four hundred pounds, leaving a surplus of a hundred pounds for the benefit of the poor. 'If these young fellows that I see on bicycles had any sense,' said Van Wagener, 'they would drive their machines by electricity, and avoid the awful consumption of energy.' No sooner had this idea struck him than he proceeded to invent an electric engine for bicycles, and in the course of the summer he had his invention worked out to his own satisfaction. ”
