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Show moreHandwritten letter from Brooks Shepard to Charles F., Sr., thanking Brush for sending his fourth paper on gravitation, in which Shepard finds the use of water in Brush's table of velocities interesting. Shepard would like to know where hydrogen and helium might stand on the list, as well as the implications of using radioactive elements.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 2: Acknowledgments (1921-1929)
Box 3
Folder 2
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Charles F. Brush, Sr., Paper
Show moreTyped letter from Elihu Thomson to Charles F., Sr., thanking Brush for sending his fourth paper on gravitation to Thomson.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 2: Acknowledgments (1921-1929)
Box 3
Folder 2
Show less
Charles F. Brush, Sr., Papers
Se
Show moreTyped letter from Walton Clark to Charles F., Sr., thanking Brush for sending his fourth paper on gravitation to Clark.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 2: Acknowledgments (1921-1929)
Box 3
Folder 2
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Show moreTyped letter from Newton D. Baker to Charles F., Sr., thanking Brush for sending his fourth paper on gravitation, which Baker thinks is important for its consideration of composition of mass in calculating gravitational pulls.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 2: Acknowledgments (1921-1929)
Box 3
Folder 2
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Show moreHandwritten postcard from Edwin B. Frost to Charles F., Sr., thanking Brush for sending a copy of his fourth paper on gravitation to the Yerkes Observatory.
Charles F. Brush, Sr., Papers
Series 1: Correspondence
Subseries 2: Acknowledgments (1921-1929)
Box 3
Folder 2
Show less