1. Physiological studies of the knee-jerk, and of the reactions of muscles under mechanical and other excitants Author(s): Mitchell, S. Weir (Silas Weir), 1829-1914 authorLewis, Morris J. (Morris James), 1852-1928, author Publication: Philadelphia : Lea Brothers and Company, [1886?] Subject(s): Muscles -- physiologyReflex, Stretch