Correspondence

Primarily correspondence, including a group of individual letters from astronomers associated with Mount Wilson Observatory about a variety of subjects. Authors include Olin Wilson, Halton Arp, Horace W. Babcock, William A. Baum, George Ellery Hale, Walter Adams, Ira Sprague Bowen, Armin Joseph Deutsch, Robert Kraft, Seth Barnes Nicholson, Robert Howard, and Allan Sandage. A press photograph of James Jeans and Edwin Hubble is also included with this group. There are also two photographs of Harlow Shapley, and 14 letters from Shapley to a variety of correspondents, related to potential talks, book publication, salary difficulties for scientists, possible TV series work, and other appearances.