Perry Coal Co. v. Richmond

delivered the opinion of the court. '

On September 18, 1901, Robert Blair and Mary Blair, his wife! conveyed to the Ooulterville Home Mining- Company all interest in and to the coal and salt lying under the surface of certain described lands, in consideration of one dollar and “one and one-half per cent per ton, royalty, mine run, for each and every ton of coal mined from the premises. . . . And when so mined or produced, to pay to the said grantors, their ■ heirs or assigns, the said sum of money and royalty above specified, on or before the 15th day of each month”; which agreement was filed…