Letter from Philip EB Jourdain Encloses A. E. Heath's comment on Ross's manuscript on solid space algebra (Ross/163/18/03). He found it very interesting and hopes that there will be a philosophical discussion on the symbolism in the tenth section. He also says that he hopes that Ross will present a paper of his to the Royal Society, adding that "Whitehead and Russell have done all in their power to prevent my work being published" and have pirated it as well. 20/6/1919