Referee's report by Robert John Strutt, Lord Rayleigh, on a paper 'The occurrence of ozone in the upper atmosphere' by John Norman Pring Sectional Committee: Physics and Chemistry Recommended for publication in the 'Proceedings of the Royal Society of London'. The paper has 'been carefully gone over' by Ernest Rutherford. The discussion is somewhat inadequate, but does not suggest alteration. [Published in the 'Proceedings of the Royal Society of London', 1914] Endorsed on verso as received 6 February 1914. [February 1914]