Boy Scouts in Mexico: G. Harvey Ralphson

Chapter I. Planning a Vacation.
Chapter II. A Member of the Wolf Patrol.
Chapter III. The Wolf Advises Flight.
Chapter IV. The Wolf Talks in Code.
Chapter V. The Wolf in the Bear's Bed.
Chapter VI. Two Black Bears in Trouble.
Chapter VII. Signals on the Mountain.
Chapter VIII. A Strange Disappearance.
Chapter IX. About the Third Suspect.
Chapter X. The Wolf Meets a Panther.
Chapter XI. Black Bear and Diplomat.
Chapter XII. Wolf and Panther After Bear.
Chapter XIII. Captured the Wrong Boy.
Chapter XIV. The Case is Well Stated.
Chapter XV. Accusing Each Other.
Chapter XVI. Wolves on the Mountain.
Chapter XVII. Plenty of Black Bears.
Chapter XVIII. Fremont and the Renegade.
Chapter XIX. What Was Found Underground.
Chapter XX. Black Bears to the Rescue.
Chapter XXI. Wolves Becoming Dangerous.
Chapter XXII. The Call in the Rain.
Chapter XXIII. Some Unexpected Arrivals.
Chapter XXIV. The Story of the Crime.
Chapter XXV. Ready for the Canal Zone.