Referee's report by George Carey Foster, on a paper 'On a method of determining the thermal conductivity of metals, with applications to copper, silver, gold, and platinum' by James H Gray Not recommended for publication in the 'Philosophical Transactions of the Royal Society'. The determinations and results are valuable. The paper does not have the finish of a Philosophical Transactions paper. If the abstract has not yet appeared in the Proceedings, suggests some of the figures be added to it for printing. Subject: Physics and Chemistry [Published in the Philosophical Transactions of the Royal Society, 1895] 16 July 1894