Letter from Horace T [Tabberer] Brown, The Athenaeum, Pall Mall, to [Joseph] Larmor He thanks Larmor for the proof and for drawing his attention to Jeffrey's paper in the March Philosophical Magazine. He quotes from the paper and discusses the structure of the stomata which may have led to a misunderstanding about diffusion in a leaf. He feels that Darwin was right in the matter. He is now quite used to seeing statements showing a misunderstanding of the fundamentals, citing an example by Dixon. With some pencilled formulae verso. 18 March 1918