In mining law, the end lines of a claim, as platted or laid down on theground, are those which mark its boundaries on the shorter dimension, where it crossesthe vein, while the “side lines” are those which mark its longer dimension, where itfollows the course of the vein. But with reference to extra-lateral rights, if the claim asa whole crosses the vein, instead of following its course, the end lines will become sidelines and vice versa. Consolidated Wyoming Gold Min. Co. v. Champion Min. Co. (C. C.)03 Fed. 540; Del Monte Min. & Mill. Co. v. Last Chance Min. Co., 171 U. S. 55, 18 Sup.Ct. 805, 43 L. Ed. 72.