Separate descriptions of the three Mount Everest expeditions have already been written by those who took part in them and have been published in three books, Mount Everest: the reconnaissance, 1921; The assault on Mount Everest, 1922; and The fight for Everest, 1924. The present volume purports to be a condensed description of the three expeditions. It is ... based on the above-named publications. --Pref.