Referee's report by William Chander Roberts-Austen, on a paper 'An experimental investigation into the flow of marble' by Frank Dawson Adams and John Thomas Nicolson Sectional committee: Physics and chemistry Recommended for publication in Philosophical Transactions. He has no modifications to suggest and thinks all the illustrations should be reproduced. The authors are the first to demonstrate the plasticity of carbonate of lime thus making an important contribution to geology. The analogy to the behaviour of marble under stress to that of metals is very interesting. The experiments have been well described and conducted, and the influence of temperature has been duly observed. [Published in Philosophical Transactions A, 1900]. Endorsed on verso as received 18 July 1900. July 1900