The delightfully eccentric Doctor Dolittle, rendered immortal on screen by the gifted Rex Harrison, has remained a firm favorite with generations of children ever since he made his debut in an earlier novel, The Story of Doctor Dolittle. In his second outing titledThe Voyages of Doctor Dolittle, the maverick physician takes on a new assistant, Tommy Stubbins. The story is structured as a first person account given by Tommy, who is now a very old man. The boy who was the son of the village cobbler first meets Doctor Dolittle when he takes a hurt squirrel to the doctor for treatment. Tommy...