Notebook: inscribed 'p. 0 to 20 Old unfinished work at Montreal (abandoned); p.20 June 15 1907. Resume of Ur - Ra expts.' Observations continue 1907-1912. 294 pages. Notebook begun at Merton College, Oct. 1898; notes on expts. on camphor and report on them. (May refer to very early work at Eastbourne College). Rear of book reads 'March 1903. Chemical Laboratory University College, Gower Street', 1903-1905; notes of expts. on radium emanations. Expts. continue 1907-1908. 139…