Paper, 'On certain ternary alloys. I. Alloys of lead, tin, and zinc' by C R [Charles Romley] Alder Wright and C Thompson The authors write: 'It is well known, that quite apart from a tendency to separate more or less completely into different mixtures during solidification, certain mixtures of molten metals show a tendency to separate into two alloys of different densities on standing fused for some time.' Annotations in pencil and ink. Includes five graphs of experimental results. Subject: Metallurgy Received 5 March 1889. Read 28 March 1889. A version of this paper was published in volume 45 of the Proceedings of the Royal Society as 'On certain ternary alloys. I. Alloys of lead, tin, and zinc'. 1889