Referee's report by Joseph Norman Lockyer, on two papers 'Flame spectra at high temperatures.— Part II. The spectrum of metallic manganese, of alloys of manganese, and of compounds containing that element' and 'Flame spectra at high temperatures.—Part III. The spectroscopic phenomena and thermo-chemistry the bessemer process' by Walter Noel Hartley Recommended for publication in the 'Philosophical Transactions of the Royal Society'. The papers are a continuation of an earlier paper by the same author published in the Philosophical Transactions. Suggests reducing the number of photographs. Subject: Physics and Chemistry [Both papers published in the Philosophical Transactions of the Royal Society, 1894] 20 June 1894