U.S. Code / Title 30 — Mineral Lands and… / Chapter 3—Lands Containing Coal, Oil, Gas,…Title 30SubchapterSubchapter Vii—Permits to Prospect for Chlorides, Sulphates, Carbonates, Borates, Silicates, or Nitrates of PotassiumContents§ 141 to 152. Repealed. Feb. 7, 1927, ch. 66, §6, 44 Stat. 1058