Referee's report by Francis Darwin, on a paper 'On the ascent of sap' by Henry Horatio Dixon and John Joly Recommended for publication in the 'Philosophical Transactions of the Royal Society'. Finds the botanical parts to be alright. Cannot give an opinion on the theory, which is based on Maxwellian physics. Suggests the paper should be reviewed by a physicist. States that the authors have been assisted by George Francis Fitzgerald. Subject: Botany [Published in the Philosophical Transactions of the Royal Society, 1895] 24 October 1894