§99. That the portion of the public domain heretofore known as Crown land is hereby declared to have been, on the twelfth day of August, eighteen hundred and ninety-eight, and prior thereto, the property of the Hawaiian government, and to be free and clear from any trust of or concerning the same, and from all claim of any nature whatsoever, upon the rents, issues, and profits thereof. It shall be subject to alienation and other uses as may be provided by law.