Langtang Lirung, East Ridge. A joint Nepalese-Japanese expedition, led by Akira Ban, was composed of four Nepalese from Tribuvan University and nine Japanese from Osaka City University. They completed a new route, which had been twice unsuccessfully tried by Japanese, in 1961 and 1964. The ascent was via the east ridge from the Lirung Glacier. The summit was reached on October 24 by Seishi Wada, Japanese, and Pemba Tsering, Nepalese, from Camp IV at 21,825 feet. (Information from Iwa To Yuki and from Michael J. Cheney.)