Notebook inscribed 'Tom Cottrell, Rex Richards, Eva Vago [later Richards], Roy Hill. Wave Mechanics. Examples in Pauling and Wilson'. Undated but from Cottrell's time in Oxford, 1946-1948.

Cottrell, Richards, Vago and Hill decided to solve the problems in Pauling and Wilson's Introduction to Quantum Mechanics and this notebook records their solutions. The solution to the one problem they failed to solve was provided by D.H. Whiffen and enclosed in the book.