Mount Everest, the Reconnaissance, 1921

The narrative recounts a reconnaissance of the highest Himalayan summit, detailing approach routes from Darjeeling through Sikkim and the Chumbi Valley, crossings to Tingri and exploration of the Kharta and Kama valleys up to a high-altitude camp. Separate sections analyze the northern and eastern approaches, a climb attempt, and observations on weather, snow conditions, and possible summit routes. Supplementary material documents surveying and photographic work, geological and natural-history notes, lists of collected specimens, and maps and illustrations that support the expedition report. The tone combines travel memoir, mountaineering reconnaissance, and scientific field reporting.