A traverse of the Dent Blanche and the first direct ascent of the Aiguille de Bionnassay by the North Face, read before the Rucksack Club, March 11, 1927, and the first direct ascent of the Aiguille de Bionnassay by the North Face, read before the Alpine Club, December 13, 1926. [With plates.]
Lloyd, Robert Wylie.
[London], 
1927.
With proofs of some of the plates and other photographs loosely inserted.