Referee's report by Sydney Ringer, on a paper 'The pharmacology of pyraconitine and methylbenzaconine considered in relation to their chemical constitution' by John Theodore Cash and Wyndham Rowland Dunstan Sectional committee: Physiology Recommended for publication in Philosophical Transactions in full and no modifications are necessary. All the illustrations should be reproduced. This is of the same character as the other paper and is valuable as regards its bearing on chemical constitution and physiological action. [Published in Philosophical Transactions B, 1903]. Endorsed on verso as received 2 July 1901. July 1901