Referee's report by Hugh Longbourne Callendar, on a paper 'The specific heat of aqueous solutions, with special reference to sodium and potassium chlorides' by William Robert Bousfield and C Elspeth Bousfield Sectional Committee: Physics and Chemistry Recommended for publication in the 'Proceedings of the Royal Society of London'. The speculation is not based on 'a very secure foundation', but the author is 'entitled to his own interpretation of the observations, which cannot be materially abbreviated'. [Published in the Philosophical Transactions of the Royal Society A, 1919] Endorsed on verso as received 26 June 1917. [June 1917]