Typed letter from Samuel Lewis Smith to Charles F., Sr., thanking Brush for sending a copy of his paper, Persistent Generation of Heat in Some Rocks, Show moreTyped letter from Samuel Lewis Smith to Charles F., Sr., thanking Brush for sending a copy of his paper, Persistent Generation of Heat in Some Rocks, to Smith, who plans to pass it on to the head of the Metallurgical Department Charles F. Brush, Sr., Papers Series 1: Correspondence Subseries 2: Acknowledgments (1921-1929) Box 3 Folder 5 Show less
Typed letter from Charles S. Howe to Charles F., Sr., thanking Brush for sending a copy of his paper, Persistent Generation of Heat in Some Rocks, to Show moreTyped letter from Charles S. Howe to Charles F., Sr., thanking Brush for sending a copy of his paper, Persistent Generation of Heat in Some Rocks, to Howe Charles F. Brush, Sr., Papers Series 1: Correspondence Subseries 2: Acknowledgments (1921-1929) Box 3 Folder 5 Show less
Typed letter from C. B. Gleason, president of the University Club Cleveland, to Charles F., Sr., thanking Mr. Brush for his assistance and interest in Show moreTyped letter from C. B. Gleason, president of the University Club Cleveland, to Charles F., Sr., thanking Mr. Brush for his assistance and interest in the club, and informing Mr. Brush the Club had awarded him honorary membership Charles F. Brush, Sr., Papers Series 1: Correspondence Subseries 1: Family and Personal (1889-1929) Box 2 Folder 6 Show less