<span>Typed letter from Linda A. Eastman to Charles F. Brush, Sr. on behalf of the Cleveland Public Library's receipt of Brush's publication </span><span>Discussion of a Kinetic Theory of Gravitation II.Charles F. Brush, Sr., PapersSeries 1: CorrespondenceSubseries 2: Acknowledgments (1921-1929)Box 3Folder 1</span>