Thomas Hunt Morgan papers, ca. 1919-1947
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- Thomas Hunt Morgan to Otto L. Mohr, 1919 October 21
- Concerning reprints of his article.
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- Thomas Hunt Morgan to Otto L. Mohr, 1919 October 29
- Concerning his reprints. Educational events in the U.S. and interest in genetic
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- Thomas Hunt Morgan to Otto L. Mohr, 1920 August 26
- Bon voyage and news of their child. Enclosed originally in letter from T.H. Morgan to O.L.Mohr; Dec. 3, 1920.
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- Thomas Hunt Morgan to Otto L. Mohr, 1920 December 3
- Hopes his son is well. They are anxious about him. Encloses telegram, dated: Aug. 26,1920, which was not delivered on ship.
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- Thomas Hunt Morgan to Otto L. Mohr, 1920 June 30
- Want him to stay with them while he is visiting.
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- Thomas Hunt Morgan to Otto L. Mohr, 1920 March 1
- Are awaiting their visit, while in California.
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- Thomas Hunt Morgan to Otto L. Mohr, 1921 May 31
- Genetics experiment on flies. Concerning other experiments in genetics.
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- Thomas Hunt Morgan to Otto L. Mohr, 1921 May 4
- California is beautiful but they will return to New York. Current work in genetics. Friendly letter.
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- Thomas Hunt Morgan to Otto L. Mohr, 1921 September 6
- Genetic studies and study on grasshoppers.
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- Thomas Hunt Morgan to Otto L. Mohr, 1922 January 10
- News of work. Plans for travels.
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- Thomas Hunt Morgan to Otto L. Mohr, 1922 July 4
- Questions on his paper concerning radium on genetics.
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- Thomas Hunt Morgan to Otto L. Mohr, 1922 March 16
- His plans for the summer, in Europe. Change in personnel. Friendly letter.