||68 LAWS OF CONGRESS i7; States system of public land surveys, and the rectangular subdivisions of such surveys, and no such location shall include more than twenty acres for each individual claimant; but where placer claims cannot be conformed to legal subdivisions, survey and plat shall be made as on unsurveyed lands; and where by the segregation of mineral land in any legal subdivision a quantity of agricultural land less than forty acres remains, such fractional portion of agricultural land may be entered by any party qualified by law, for homestead or pre-emption purposes, y Sec. 2332. Where such person or association, they dence of pos- r ' J estabus*a|to an<^ their grantors, have held and worked their claims for !mthttoa pat"a Peri°^ equal to the time prescribed by the statute of limitation for mining claims of the State or Territory where the same may be situated, evidence of such possession and work-ffiMfisfvi'ie", ing of the claims for such period shall be sufficient to estab-p-w- lish a right to a patent thereto under this chapter, in the absence of any adverse claim ; but nothing in this chapter shall be deemed to impair any lien which may have attached in any way whatever to any mining claim or property thereto attached prior to the issuance of a patent, proceedings Sec. 2333. Where the same person, association, or cor- for patent for -^ ' ' placer claims, poration is in possession of a placer claim, and also a vein or lode included within the boundaries thereof, application shall be made for a patent for the placer claim, with the 7', statement that it includes such vein or lode, and in such case ' a patent shall issue for the placer claim, subject to the provisions of this chapter, including such vein or lode, upon the payment of five dollars per acre for such vein or lode claim, and twenty-five feet of surface on each side thereof. The remainder of the placer claim, or any placer claim not embracing any vein or lode claim, shall be paid for at the rate of two dollars and fifty cents per acre, together with all costs of proceedings; and where a vein or lode, such as is described in section twenty-three hundred and twenty, is known to exist within the boundaries of a placer claim, an application for a patent for such placer claim, which does not include an application for the vein or lode claim, shall be construed as a conclusive declaration that the claimant of the placer claim has no right of possessioii of the vein or lode claim; but where the existence of a vein or lode in a placer claim is not known, a patent for the placer claim shall convey all valuable mineral and other deposits within the boundaries thereof.