Referee's report by Charles Thomson Rees Wilson, on a paper 'The electric field of overhead thunderclouds' by Sudhansu Kumar Banerji Sectional committee: Physics Recommended for publication in Philosophical Transactions, in full. Detailed accounts of electric field of thunderclouds in different parts of the world are needed and the author should be allowed the opportunity to put forward his own interpretation of the results. [Published in Philosophical Transactions A, 1933]. Endorsed on verso as received 2 July 1931. July 1931