Second referee's report by Nevill Francis Mott, on a paper 'Some properties of the metallic state I—Metallic hydrogen and its alloys' by Alfred Rene Jean Paul Ubbelohde Sectional Committee: Physics Not recommended for publication in the 'Proceedings of the Royal Society of London' unless revised. Gives examples of poor reasoning. Suggests the author contact a specialist in theoretical metal physics to discuss ideas. [Published in the 'Proceedings of the Royal Society of London'] Endorsed on verso as received 3 December 1936. [December 1936]