Section 387, act Aug. 1, 1912, ch. 269, 1, 37 Stat. 242, related to limiting association placer-mining claims. Section 388, act Aug. 1, 1912, ch. 269, 2, 37 Stat. 243, related to restrictions on power of attorney to locate placer-mining claims. Section 389, act Aug. 1, 1912, ch. 269, 3, 37 Stat. 243, related to restrictions on placer locations. Section 390, acts Aug. 1, 1912, ch. 269, 4, 37 Stat. 243; Mar. 3, 1925, ch. 442, 43 Stat. 1118, related to area and shape of placer claims. Section 391, act Aug. 1, 1912, ch. 269, 5, 37 Stat. 243, related to placer locations in violation of law. See, now, sections 35 to 37 of Title 30, Mineral Lands and Mining.