RAYLEIGH Lord - Professor William RAMSAY : - Argon a new constituent of the atmosphere. (Published as) Smithsonian Contributions to Knowledge 1033 Hodgkins Fund.

10. Washington, Smithsonian Institution, 1896, in-4°, 32 cm, (6)nn pp + 43 pp + (1)nn pp(blanc), some illustrations in the text. Publisher's green coloured cloth with gilt lettering and some blind fillets on the front cover. Fine copy, with stamp on title stating that this copy was sold by the Brooklyn Public Library. First American - and first separate - edition of the report on the discovery of the noble gas argon. (It first appeared as an article in the Transactions of the Royal Society, London, 1895). The authors were awarded the Noble Prize for their discovery in 1904. .