RT Sound Recording DB /z-wcorg/ DS http://worldcat.org ID 277156566 LA English T1 Excursions in science. Program no. 59, Program no. 59, A1 Tupper, Howard., Markham, Emerson., Barton, William Henry,, Goldin, J. David., Andrew W. Mellon Foundation., Marr Sound Archives., PB General Electric PP Schenectady, N.Y. YR 1942 AB A discussion about the movements of the earth and the history of our understanding of the shape, rotation, and orbit of the Earth and other celestial bodies. Based on a research paper by William H. Barton Jr.