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Show moreThree typed letters between the American Physical Society and Charles F., Sr., included in the first letter are two copies of the abstract for the Discussion of the Kinetic Theory of Gravity by Brush, which the American Physical Society informs him is too long for publication
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 3
Folder 11
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Show moreOne reprint, one typescript abstract, two handwritten manuscripts for the article by Charles F. Brush, Sr. entitled, Discussion of the Kinetic Theory of Gravitation IV: Correlation of Continual Generation of Heat in Some Substances and Impairment of their Gravitational Acceleration. Reprint from the Proceedings of the American Philosophical Society, Volume 67, Number 2, dated 1928. Handwritten manuscripts dated April, 1928. No date on typescript abstract. Brush presents a summary and further evidence from his experiments in gravitation
Charles F. Brush, Sr., Papers
Series 7: Articles by Charles F. Brush (1879-1929)
Box 26
Folder 15
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Show more7 Typed and handwritten letters between W. W. Keen and Charles F., Sr., written in 1924 and 1928, in the first correspondence Keen requests money from Brush, which Brush feels he cannot afford at the time, Keen later writes to congratulate Brush on receiving the Franklin Institute Medal in 1928, and again discussing Brush's theory of gravity, about which Keen recommends reading Millikan's articles and Brush agrees. Final letter from Keen regarding establishment of Brush Foundation, particularly his familiarity with Dr. T. Wingate Todd. 2 typed letters between Sarah Starr and Brush, written in 1928, in which Starr describes the creation of a Keen Fund to which Brush promises 1000 dollars.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 4
Folder 16
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Show more1 Typed letter from Brooks Shepard to Charles F., Sr., from 1927 regarding writing work he was doing for Brush including Charles F., Jr.'s biography, and his pleasure at being able to write for Brush. 11 typed and handwritten letters between Brooks Shepard, Charles F., Sr., and John Benyon, 1928-1929, in which Benyon asks Brush for an account of the invention of the arc-light for a publication The United States History Association planned to publish, which article Brush suggested Shepard write. Further letters discuss the status of the article. Final letter from Nona Schirg to John Benyon enclosing article after Brush's death in 1929.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 5
Folder 14
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Show more13 reprints of and typescript and handwritten manuscript for the article by Charles F. Brush, Sr. entitled, Some Experimental Evidence Supporting the Kinetic Theory of Gravitation, from the Journal of the Franklin Institute, Volume 206, Number 2, dated August, 1928. Brush summarizes some of his past achievements, including the secondary battery, then goes on to briefly explain the Kinetic Theory of Gravitation, using evidence from his previous experiments in gravitation and persistent generation of heat in some rocks and minerals
Charles F. Brush, Sr., Papers
Series 7: Articles by Charles F. Brush (1879-1929)
Box 26
Folder 14
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Show moreTwo reprints of, two transcripts and one handwritten manuscript for the speech given by Charles F. Brush, Sr. entitled, Some Reminiscences of Early Electric Lighting, from the Journal of the Franklin Institute, Volume 206, Number 1, July, 1928. Brush summarizes his own achievements in the field of electricity in context of the field in general, discussing such things as the development and marketing of his arc light system and electric dynamos, as well as the Brush Electric Company
Charles F. Brush, Sr., Papers
Series 7: Articles by Charles F. Brush (1879-1929)
Box 26
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Show more8 Typed letters between Elmer Sperry, Charles F., Sr., and members of the Cleveland Engineering Society. Sperry and Brush correspond briefly in 1926 regarding personal life. In 1928 The Cleveland Engineering Society asks Brush to help convince Sperry to speak at their annual meeting, which Brush does, and Sperry agrees. Later in 1928 Sperry gives Brush a gyroscope, which they discuss briefly in letters.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 3: Business and Professional (1876-1931)
Box 5
Folder 16
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