The Secretary of the Treasury, upon the certification of the Secretary of Agriculture, shall pay to the State of Minnesota, at the close of each fiscal year from any national-forest receipts not otherwise appropriated a sum of money equivalent to three-quarters of 1 per centum of the fair appraised value of such national-forest lands as may be situated within the area described in at the end of each fiscal year; and the payments made hereunder shall be distributed to each of the three aforesaid counties in conformity with the fair appraised value of such national-forest lands in each county: , That the fair appraised value of the lands shall be determined by the Secretary of Agriculture at ten-year intervals and his determination shall be conclusive and final: , That the first payment to the State of Minnesota under the provisions of this section shall not be due until the close of the first full fiscal year after : , That the provisions of , shall not be applicable to the national-forest lands to which this section applies.section 577d of this titlesection 500 of this titleJune 22, 19481948-06-22ProvidedProvided furtherAnd provided further