"Counting 'cash' in the days before copper and silver coins were minted. The brass cash had square holes, and were strung in units of 100, ten of which made a 'tiao', the rough equivalent of a dollar. The 2 young men in the photo, Kung and Pao, came with a third, Tai, to OTL [Oliver Tracy Logan] soon after his return in 1901, and asked to be trained in Western medicine. After a sort of apprenticeship in the old hospital, they were sent to medical school, were graduated, and returned to join the staff in Chanteh [now Changde]. Dr. Pao, (right) was with OTL [Oliver Tracy Logan]at the end and was heartbroken that he could not save him."; Captions for this set of lantern slides from the papers of Oliver and Jennie Logan, American Presbyterian missionaries in Hunan, were provided by their daughter Elsa.