| Description | Event by event analysis of tracks recorded in B.2 and B.3, analysis of results and of graphs.
Notes of tracks with recoil atoms, of air tracks, reduction of helium tracks in 'Book B' (B.3), test angles, range and velocity of hydrogen atoms, argon tracks, curled helium tracks.
One entry is dated 16 January 1923 'measurement of argon tracks'.
On p.74 there is a note in another hand (probably Rutherford's) commenting on Blackett's calculations of comparative curvature of hydrogen, helium and air. 'All wrong' has been crossed out and replaced by 'quite all right'. |