Act approved March 1, 1911, referred to in text, is act Mar. 1, 1911, ch. 186, 36 Stat. 961, as amended, popularly known as the Weeks Law, which is classified to sections 480, 500, 513 to 519, 521, 552, and 563 of Title 16, Conservation. For complete classification of this Act to the Code, see Short Title note set out under section 552 of Title 16 and Tables.