Referee's report by John Desmond Bernal, on a paper 'Three-dimensional diffraction theory microscope image formation' by A R Stokes Sectional committee: Physics Paper reference code: A271 Recommended for publication in the Proceedings. Bernal comments this is an 'excellent' paper and makes a significant contribution to the Abbe theory of microscopic vision, with one criticism regarding the confirmation of the theory. [Published in Proceedings A, 1952]. Date received not given. [1951]