Red softbacked notebook, inscribed inside 'E. V. Appleton. St. John's College, Cambridge', 1919

Red softbacked notebook, inscribed inside 'E. V. Appleton. St. John's College, Cambridge', dated 1919. Both ends of the item are used. Contains notes (some dated 1919) of experiments on oscillating circuits; notes on glassblowing; notes of work planned, including 'Van der Pol's coils'; and Narrative of experiments conducted.