Wigner, E. P., to "Gentlemen," report on visit to New York, Fermi and Szilard, metallic U had been analysed and contains small amount of B, absorption of slow neutrons, wishes to measure absorption of oxide, possible techniques [tls], 6/26/1941

Wigner, E. P., to "Gentlemen," report on visit to New York, Fermi and Szilard, metallic U had been analysed and contains small amount of B, absorption of slow neutrons, wishes to measure absorption of oxide, possible techniques [tls], 6/26/1941, Box: 4, Folder: 23. Robert R. Wilson papers, 14-22-3093. Division of Rare and Manuscript Collections. https://aspace3-test.library.cornell.edu/repositories/2/archival_objects/225244 Accessed July 16, 2025.