Referee's report by John Bretland Farmer, on a paper 'The histology of Uredo dispera, Erikss, and the 'Mycoplasm' Hypothesis' by Harry Marshall Ward Sectional Committee: Botany Recommended for publication in Philosophical Transactions. It would be difficult or impossible not to publish it in full and the illustrations 'should be introduced'. In general the paper contains much of a controversial nature, but the author probably regards an exhaustive destructive criticism of an opposite theory as necessary to his argument. [Published in Philosophical Transactions B, 1904]. Endorsed on verso as received 12 March 1903. March 1903