Hugh Lofting 
The voyages of Doctor Dolittle (Illustrated) 

Tommy Stubbins, John Dolittle’s nine-year-old assistant, accompanies the good doctor and his crew of animal companions on an exciting, hazardous voyage to find Long Arrow, a native American who is reputed to be the world’s greatest living naturalist. Their travels range from the Mediterranean to South America to the bottom of the sea; and with the help of his animal friends, the Doctor brings solutions to every crisis.