Referee's report [page one] by Alfred Harker, on a paper 'The synthesis of a silicalcyanide and of a felspar' by James Emerson Reynolds [Page once affixed to RR/19/101, was removed to be sent to the author] Sectional Committee: Physics and Chemistry Recommended for publication in the 'Proceedings of the Royal Society of London'. Suggestion sent to the author, that the new synthetic mineral produced is not identical to Anorthite. Suggests fuller investigation of optical constants to aid in determination. [Published in the 'Proceedings of the Royal Society of London', 1913] No received date. 30 October 1912