Referee's report by John Evans, on a paper 'Limestone as an index of geological time' by Thomas Mellard Reade Not recommended for publication in the 'Philosophical Transactions of the Royal Society'. The paper is interesting but too speculative. The abstract already published in the Proceedings covers all the main points sufficiently. Subject: Geology [Published in the 'Proceedings of the Royal Society of London', 1879] 28 March 1879