JMS Pearce East York, England The vogue for reflex hammers started with Erb and Westphal’s adjacent papers1,2 in the 1875 issue of the Archiv für Psychiatrie und Nervenkrankheiten, which described the tendon or muscle stretch reflex. Wilhelm Heinrich Erb (1840-1921) read medicine at Heidelberg where he remained for most of his life. The leading neurologist in…