""A Study of the Knee Jerk"" by Edwin B. Twitmyer is a scientific exploration of the knee jerk reflex. This book delves into the history of the knee jerk reflex, its physiological mechanisms, and the factors that can affect its response. Twitmyer also provides detailed descriptions of the tools and techniques used to measure the knee jerk reflex, as well as instructions on how to perform the test. The book includes numerous case studies and experiments...