Copy letter from Robert William Frederick Harrison, to Professor Hugh Longbourne Callendar, Chairman of the Physiology Sectional Committee Encloses correspondence with reference to Professor Orme Masson and E S Richards' paper 'On the Hygroscopic Action of Cotton' [not enclosed]. Masson's paper is enclosed for Callendar's information. The printing of the paper has been held back pending Masson's reply to criticisms by Trouton which were sent to Masson by Professor [Joseph] Larmor. If Callendar concurs, Larmor proposes the paper should go forward to press without delay for the 'Proceedings [of the Royal Society]' A. 7 November 1906