Mr. George Leigh Mallory, noted English mountain climber, and one of the leaders of the recent Mount Everest expedition, will deliver an illustrated lecture entitled "Climbing Mount Everest" at 8 o'clock this evening in the Living Room of the Union. Professor Theodore Lyman '97, president of the Harvard Travelers' Club, will introduce the speaker. Before the lecture Mr. Mallory will be the guest of the Governing Board of the Union at dinner.

The lecture, which is held under the joint auspices of the Union and the Harvard Travelers' Club will be open to all members of the Union, the Travelers' Club, and their respective guests. Members of the Union, who wish to bring guests, should call for their guest tickets before 5 o'clock this afternoon. They must also have their own membership cards in order to be admitted.

In his lecture Mr. Mallory will tell the complete story of the expedition that reached the unprecedented altitude of 27,235 feet above sea level, a height only 1700 feet below the summit. During the climb vast snow plains and glaciers were crossed through blizzards of snow and hail. One avalanche that swept down the mountainside carried several of the Hindu helpers into deep crevasse to instantaneous death.

In order to present his lecture with the utmost vividness, Mr. Mallory will present a series of stereopticon views made from actual photographs taken while the ascent was in progress.