Copy of a letter from Ross to Philip EB Jourdain Encloses his manuscript of Solid space algebra for Jourdain's and A. E. Heath's opinions. He says that it is incomplete, as there are sections on the arithmetic and metaphysics which have still to be written. He thanks Jourdain for sending him a copy of a pamphlet by Sarton but says that he has already seen it. 18/12/1918