Referee's report by John William Strutt, 3rd Baron Rayleigh, on a paper 'A new current weigher and a determination of the electromotive force of the normal Weston cadmium cell' by William Edward Ayrton, Thomas Mather and Frank Edward Smith Sectional Committee: Physics and Chemistry Not recommended for publication in the 'Philosophical Transactions of the Royal Society'. Considers the paper rather elaborate, but does not wish to recommend reducing the paper due to the large amount of work and resources which have gone into it. [Published in the Philosophical Transactions of the Royal Society] Endorsed on verso as received 28 June 1907. [June 1907]