The Rare EarthsNote 316 — Chapter XIII · THE TERBIUM GROUPReading editionCompt. rend. 1900, 130, 1469.◇[317] Ibid. 1904, 138, 627.◇[318] Ibid. 1908, 146, 473.◇Copy noteReturn to CHAPTER XIII THE TERBIUM GROUPReturn to CHAPTER XIII THE TERBIUM GROUPReturn to CHAPTER XIII THE TERBIUM GROUP