Passamaquoddy Bay tidal power, report to accompany S. J. Res. 57 [authorizing Secretary of War to cause completion of surveys, test borings, and foundation investigations to be made to determine advisability and cost of putting in small experimental plant for development of tidal power in waters in and about Passamaquoddy Bay, cost thereof to be paid from appropriations heretofore or hereafter made for such examinations]; submitted by Mr. Mansfield.