Referee's report by Richard Tetley Glazebrook, on a paper 'The measurement of thermal conductivity' by Ezer Griffiths and George William Clarkson Kaye Sectional Committee: Physics Recommended for publication in the 'Philosophical Transactions of the Royal Society'. The description of the apparatus should be printed in full, as it may be of use to other researchers. [Published in the 'Proceedings of the Royal Society of London' A, 1923] Endorsed on verso as received 9 May 1923. 7 May 1923