Mather Speaks at Union

Kirtley F. Mather, Professor of Geology, will lecture at the Harvard Union tomorrow high at 7 o'clock on the topic "From Alpine Snows to Vesuvian Lava." The address, which will tell in part of the Geology Summer School's trip in 1928, will be open to Union members only. L. T. Grimm '29, vice-president of the Union, will introduce Professor Mather.