“ In the sense intended herein, the medial line of the river is a line drawn midway between the northerly and southerly banks of the river, commonly called cut banks, save that, under a stipulation between the parties affected, to which full effect must be given, this line, in so far as it reaches and is in contact with patented or allotted tracts which are within what is now the bed of the river, shall be regarded and treated as falling no farther north than the southerly line of such tracts as the same were represented by the official survey according to which they were patented or allotted. ”

“ W 1/2 of the NE 1/4 and NW 1/4 of the SE 1/4 of section 10, township 5 S., range 15 W.
15. The receiver is directed to surrender, as soon as conveniently may be done, the possession of all patented and allotted tracts on the northerly side of the medial line which are within the receivership area and are without an oil well, and after the possession of any such tract is so surrendered that tract shall be regarded as fully discharged from the receivership. ”