Merchant marine. Passenger service season on Great Lakes, report to accompany H. R. 12396 [to amend act to promote welfare, of American seamen in merchant marine of United States, to abolish arrest and imprisonment as penalty for desertion and to secure abrogation of treaty provisions in relation thereto, and to promote safety at sea, so as to extend provisions of said act with respect to service on vessels operating on Great Lakes]; submitted by Mr. Jones of Washington.