Referee's report by Michael James Stewart Dewar, on the Bakerian Lecture 'The specific heat of metals and the relation of specific heat to atomic weight. (with an addendum by Prof. Perry)' by Professor William Augustus Tilden Sectional committee: Physics and chemistry Recommended for publication in Philosophical Transactions in full without modification and including all the illustrations. The paper embodies the results of a careful investigation and Professor Perry's appendix contributes a valuable theoretical addition. [Published in Philosophical Transactions A, 1900]. Endorsed on verso as received 13 March 1900. March 1900