Contents of a substantial folder so described.
The term 'Bathtub' was used by Frisch to describe the work on slow neutrons in hydrogenous substances. There is no other surviving folder with this title but there are two notebooks (B.47, B.48) to which reference is occasionally made in headings to diagrams, etc.
Notes, drafts, diagrams and calculations, related to work on slow neutron capture and in particular to 'The slowing-down and capture of neutrons in hydrogenous substances', by Frisch, Halban and Koch (Mat.-fys. Medd., K. Dansk Vid. Selsk., 15, 1937.
B.62: Heavily-corrected 7 pp. draft for paper. Miscellaneous pages of extensive MS notes and narrative, by Frisch and another, some headed 'Badewanne' and with various dates 1937. Pages run 1-42, but with many omissions. These items are in the original folder.
B.63: Continuing sequence of notes, paginated 51-57. Miscellaneous curves and diagrams, all by Frisch, a few dated 1937.
B.64: Figures, tables, shorter drafts, some headed 'Badewanne' and with dates 1937.
B.65: Shorter unidentified notes and diagrams. Brief correspondence re results, 1937.
