FIVE SCIENTIFIC LECTURES TO BE BROADCAST OVER WBZ

So popular have the scientific lectures on a century of progress proven that the National Broadcasting Company has arranged to have them given over the air each Saturday evening between 6.45 and 7 o'clock.

Last Saturday, F. H. Crawford, professor of Physics, talked on a century of Progress in Physic over WBZ. Next Saturday evening, August 12, Harlow Shapley will give a condensed version of the talk which he will deliver at the Observatory Thursday evening. Professor Kirtley Mather will give the Geology lecture on August 19, H. E. Bent will discuss Chemistry during the last century on August 19, H. E. Bent will discuss Chemistry during the last century on August 26, and Professor MacDonald will speak on Biology on September 2.