Note 253 — Chapter XII · CERIUM GROUP (continued)
Reading edition
Auer von Welsbach, Sitzungsber. kaiserl. Akad. Wiss. Wien, 1903, 112, IIa, July; also Urbain, Ann. Chim. Phys. 1900, [vii], 19, 184.
[254] Le Radium, 1909, 6, 215.
Reading edition
Auer von Welsbach, Sitzungsber. kaiserl. Akad. Wiss. Wien, 1903, 112, IIa, July; also Urbain, Ann. Chim. Phys. 1900, [vii], 19, 184.
[254] Le Radium, 1909, 6, 215.