This collection consists mainly of reports of royal commissions and other bodies, assembled for information of the Atlantic Provinces Transportation Commission. There are 15 series: MS1 Royal Commission to investigate the fisheries of the maritime provinces and the Magdalen Islands (1927-1928); MS2 Board of Railway Commissioners for Canada (1921-1927); MS3 The Maritime Claims Commission - Duncan Commission Hearings (1926); MS4 Royal Commission on Transportation (1949-1954); MS5 Board of Transportation Commissioners for Canada (1929-1968); MS6 Hearings (1954); MS7 Submission of the Royal Commission on Transportation (1959-1961); MS8 Water and Air Transportation Committee (1973-1982); MS9 Royal Commission on Transportation (1959); MS10 Royal Commission on Coasting Trade (1955-1956); MS11 Submission on the Railway Rates (1951-1952); MS12 Maritime Transportation Commission (1921-1965); MS13 Standing Committees (1959-1977); MS14 Railway Transport Committee (1982); MS15 Freight Audit (1970-1993)