Referee's report by John Joly, on a paper 'The heat dissipated by a platinum surface at high temperatures. Part IV. High pressure gases' by Joseph Ernest Petavel Sectional Committee: Physics & Mathematics Recommended for publication in Philosophical Transactions, in full. Modification is not discussed. All the illustrations should be reproduced. The folding plates are, however, in a quite needlessly large scale. The experiments seem carefully made and there is much that is of value. [Published in Philosophical Transactions A, 1901]. Endorsed on verso as received 7 March 1901. March 1901