Referee's report by Charles Galton Darwin, on a paper 'The theory of supersaturated ion-free vapour' by Francis James Macdonald Farley Sectional committee: Physics Paper reference code: A59 Darwin's criticisms of the paper, however remarks this is not a subject he has studied in detail, and if another referee thinks better of the paper and is willing to accept it, he will not complain. [Published in Proceedings A, 1952]. Date received not given. 24 March 1951