The third object of the expedition was to acclimatise a party of climbers who would summit Makalu () without oxygen. There were to be three scientific camps where the bicycle ergonometer would be used: Base Camp (), camp 3 on the neve () and Camp 5 ( on Makalu Col. At Camps 6 () and 7 () and the summit only alveolar air samples would be taken. Camp 3 was established by the end of April 1961 then Camp 4 (). Camp 2 was at