Letter from Charles Sykes, on his paper with W F Cox 'Precipitation in the alloys of copper and silver' to William Lawrence Bragg He returns his paper, which he wished to submit the The Royal Society. He sent the paper to the Institute of Metals on the 5th of January, 1939 and has still not received any reprints as they are 'rather slow'. Their production of photographs is not as good as The Royal Society. [Not published]. 31 January 1940