Referee's report by Robert Bellamy Clifton, on a paper 'On the spectra of metalloids— Spectrum of Oxygen' by Arthur Schuster Recommended for publication in the 'Philosophical Transactions of the Royal Society', although can see that it could be printed just as well in the Proceedings. The evidence is strong but inconclusive. The experiments appear to have included some error. Subject: Physics and Chemistry [Published in the 'Proceedings of the Royal Society of London', 1879] 14 June 1878