Referee's report by John Charles Grant Ledingham, on a paper 'The relationship of micro-organisms to the decay of stone' by Sydney G Paine, Frank V Linggood, Freda Schimmer and Thomas C Thrupp Sectional Committee: Physiology Recommended for publication in the 'Philosophical Transactions of the Royal Society'. Refers to work of Ellis [?], whose work should be referenced in the paper. [Published in the Philosophical Transactions of the Royal Society B, 1932] Endorsed on verso as received 30 August 1932. [August 1932]