Cho Oyu. In the post-monsoon period of 1953, Austrian Dr. Herbert Tichy climbed in Northwestern Nepal five or six 20,000- foot peaks, including Kangdemur (21,259 feet). His attempt on Saipal in December failed because of supply difficulties. In 1954, the 41-year-old doctor organized a light-weight post-monsoon expedition which attacked and, on October 19th, climbed 26,750- foot Cho Oyu, the seventh highest mountain in the world which was previously tried by Eric Shipton’s British expedition in 1951. Other members of the summit party were Sepp Jöchler and the sherpa, Pasang Dawa Lama, now 43 years old, who climbed to 27,500 feet on K2 with Fritz Wiessner in 1939 and nearly reached the summit of Dhaulagiri in the spring. The other member of the expedition was Dr. Helmuth Heuberger.