Copy letter from Herbert Rix, to Mr F J Vaes, Lungendijk 144, Gorinchem, Holland In answer to Vaes' postcard of 1 October, only an abstract of Professor [T A] Hearson's paper on the 'Kinematics of Machines' has been published so far. It appears in the 'Proceedings of the Royal Society' at volume 58 pages 167-174, and is published at four shillings. The full paper will not, he fears, appear for some time. As regards T Clarkson's circlograph and F W Lanchester's radial curve[?], Rix provide Vaes with the addresses of the inventors of these instruments. [October 1895]