Friedlander, of Berlin. At the same time we imagined that we had obtained a gas with a spectrum differing from that of argon and yet of approximately the same density; to this gas we gave the name ...

This complex nature of the spectrum, as well as the accompanying variations, has been made a basis for arguments against the elementary character of argon. The density of argon has been carefully ...

783 (May 2001), pp. 548-566 (19 pages) ABSTRACT An atlas of a thorium‐argon hollow cathode lamp in selected intervals of the 1–2.5 μm region is presented. Accurate wavelengths of the ∼500 lines ...

THE chromatographic separation of argon and oxygen is difficult, and existing methods depend on one of the following techniques: (1) Separation on a molecular sieve 5 Å column at 18° C (ref.