Letter from R M Davies, on a paper 'The rheology of 'elastic' non-Newtonian fluids' by F H Garner, A H Nissan and G F Wood to the Secretary of the Royal Society Is worried about a potential overlap between this paper and a previous one published by the authors. However, the apprach to the pproblem and the interpretation of results is much more fundamental. The paper could be incorporated with another one. [Published in Proceedings of the Royal Society A, 1950]. Endorse on recto as received 2 December 1949. 1 December 1949