| Description | Numerous graphs and notes, many documenting results obtained from experiment using geiger counter equipment erected by David Follett and JD Crawshaw in vacant part of Holborn tube station tunnel, London.
Notes on the literature and on results of experiments conducted by other research teams, including table of 'Vertical distribution of Cosmic Radiation at Jungfraujoch'.
Includes letter from Follett (17 February 1935) describing results to date and one page undated note from Follett re readings. |