This is an artificial collection comprised of over 4,000 photographs sent to the Museum by various donors. It includes almost 700 Civil War photographs showing wounded soldiers, ambulances, and hospitals. Also includes images of Western forts and Native American conflicts such as the massacre at Wounded Knee; the Pan-American Exhibition in 1903; medicine in the Philippines and Puerto Rico; the First Balkan War; results of surgery; pathological conditions; normal anatomy; prosthetics; anthropometry; Army Hospital Corps activities and equipment; x-rays; and photomicrographs including yellow fever studies by George Sternberg. The photographs are numbered consecutively; many are missing. Copies of some of the series were bound in thirteen volumes. There is an original card file index to the collection.