NEWLANDS, John A.R. The Discovery of the Periodic Law and on the Relations among the Atomic Weights, London, E. & F.N. Spon, 1884, FIRST EDITION, PRESENTATION COPY, front blank inscribed by the author to the Royal Medical Society, Edinburgh (the Library's stamp on title), original blue cloth (spine slightly frayed) -- ROWLAND, Henry A. The Highest Aim of the Physicist [offprint from The American Journal of Science, VIII, December, 1899], 8°, original wrappers (worn). (2)