Medals. Authorize coinage of 50-cent pieces in commemoration of 100th anniversary of arrival of Marcus and Narcissa Whitman in Walla Walla Valley, Wash., and founding of Waiilatpu Mission, report to accompany H. R. 11555 [to authorize striking of appropriate medal in commemoration of 100th anniversary of arrival of Marcus and Narcissa Whitman in Walla Walla Valley, Wash., and founding of Waiilatpu Mission]; submitted by Mr. Adams.