Unsurveyed marshlands; sale to upland owners.

The Board of Trustees of the Internal Improvement Trust Fund of the state is hereby authorized to make sales of unsurveyed marshlands to record owners of uplands which have been surveyed by the United States, and to make equitable divisions of unsurveyed marsh areas and allocations of the same for sales with due respect to upland ownership, sales heretofore made, natural divisions of the unsurveyed marshes which are indicated by the general courses of water channels within or across the unsurveyed marshes and to other topographical features of the affected areas.