The Rare EarthsNote 361 — Chapter XIV · THE ERBIUM AND YTTERBIUM GROUPS—YTTRIUM AND SCANDIUMReading editionJames, J. Amer. Chem. Soc. 1912, 34, 757.◇Copy noteReturn to CHAPTER XIV THE ERBIUM AND YTTERBIUM GROUPS—YTTRIUM AND SCANDIUM