Ben Shahn, American artist, will deliver his second Charles Eliot Norton Lecture, entitled "The Biography of a Painting," this evening at 8:30 p.m. in New Lecture Hall. This is the second lecture in a series of three to be given by Shahn. He will give the background of the development of one of his paintings. Reconstructing the process of imagination.

Fred L. Whipple, professor of Astronomy, will discuss uses of the artificial satellite to be launched by this country next year, in a lecture entitled "The Scientific Value of Artificial Satellites." The lecture will be delivered tonight at 8 p.m. in Alliston Burr B.