1. The Motor Club's Cruise Down the Mississippi; or The Dash for Dixie. 2. The Motor Club on the St. Lawrence River; or Adventures Among the Thousand Islands. 3. The Motor Club on the Great Lakes; or Exploring the Mystic Isle of Mackinac. 4. Motor Boat Boys Among the Florida Keys; or The Struggle for the Leadership. 5. Motor Boat Boys Down the Coast; or Through Storm and Stress. 6. Motor Boat Boy's River Chase; or Six Chums Afloat or Ashore. 7. Motor Boat Boys Down the Danube; or Four Chums Abroad