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Ross Harrison to Robert Andrew Millikan, October 11, 1933

ContributorsHarrison, Ross (Creator) / Arizona Board of Regents (Publisher, Publisher) / Marine Biological Laboratory (Woods Hole, Mass.) (Publisher) / Millikan, Robert Andrews, (1868-1963) (Contributor)
Created4 to 2
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Ross Harrison to Viktor Hamburger, July 15, 1944

ContributorsHarrison, Ross (Creator) / Arizona Board of Regents (Publisher, Publisher) / Marine Biological Laboratory (Woods Hole, Mass.) (Publisher) / Hamburger, Viktor (Contributor)
Created7 to 15

Ross Harrison to Charles Warren, June 3, 1930

ContributorsHarrison, Ross (Creator) / Arizona Board of Regents (Publisher, Publisher) / Marine Biological Laboratory (Woods Hole, Mass.) (Publisher) / Warren, Charles H. (Contributor)
Created6 to 3
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Ross Harrison to Viktor Hamburger, May 27, 1933

ContributorsHarrison, Ross (Creator) / Arizona Board of Regents (Publisher, Publisher) / Marine Biological Laboratory (Woods Hole, Mass.) (Publisher) / Hamburger, Viktor (Contributor)
Created5 to 27

Hans Spemann to Ross Harrison, February 20, 1931

ContributorsSpemann, Hans (Creator) / Arizona Board of Regents (Publisher, Publisher) / Marine Biological Laboratory (Woods Hole, Mass.) (Publisher) / Harrison, Ross (Contributor)
Created2 to 20
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Hans Driesch to Ross Harrison, April 26, 1930

ContributorsDriesch, Hans (Creator) / Arizona Board of Regents (Publisher, Publisher) / Marine Biological Laboratory (Woods Hole, Mass.) (Publisher) / Harrison, Ross (Contributor)
Created4 to 26
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Ross Harrison to Viktor Hamburger, May 6, 1933

ContributorsHarrison, Ross (Creator) / Arizona Board of Regents (Publisher, Publisher) / Marine Biological Laboratory (Woods Hole, Mass.) (Publisher) / Hamburger, Viktor (Contributor)
Created5 to 6