Photograph Number 304. Chronic Arthritis of the knee. The subject of this illustration, Amos S. Young, a resident of Poolsville, Maryland, age twenty - five years, and of strumous diathesis, states that he first noticed a swelling of the left knee - joint in the spring of 1868. The knee steadily increased in size, measuring twenty inches in circumference on April 13, 1871, at which time this photograph was taken at the Army Medical Museum.
