Results:

Ruth Fielding of the Red Mill; Or, Jasper Parloe's Secret

Ruth Fielding at Snow Camp; Or, Lost in the Backwoods

Betty Gordon in Washington; Or, Strange Adventures in a Great City

Betty Gordon at Boarding School; Or, The Treasure of Indian Chasm

Ruth Fielding in Moving Pictures; Or, Helping the Dormitory Fund

Ruth Fielding on Cliff Island; Or, The Old Hunter's Treasure Box

Ruth Fielding at the War Front; or, The Hunt for the Lost Soldier

Ruth Fielding and the Gypsies; Or, The Missing Pearl Necklace

Ruth Fielding Down East; Or, The Hermit of Beach Plum Point

Ruth Fielding on the St. Lawrence; Or, The Queer Old Man of the Thousand Islands

Ruth Fielding At College; or, The Missing Examination Papers

Ruth Fielding at Briarwood Hall; or, Solving the Campus Mystery

Betty Gordon in the Land of Oil; Or, The Farm That Was Worth a Fortune

Ruth Fielding at Lighthouse Point; or, Nita, the Girl Castaway

Ruth Fielding at Silver Ranch; Or, Schoolgirls Among the Cowboys

Ruth Fielding in the Red Cross; Or, Doing Her Best for Uncle Sam

Ruth Fielding In the Saddle; Or, College Girls in the Land of Gold

Ruth Fielding Homeward Bound; Or, A Red Cross Worker's Ocean Perils

Ruth Fielding Down in Dixie; Or, Great Times in the Land of Cotton

Ruth Fielding in Alaska