The Voyages of Doctor Dolittle was the second of Hugh
Lofting's Doctor Dolittle books to be published, coming out in 1922. It is
nearly four times longer than its predecessor and the writing style is pitched
at a more mature audience. The scope of the novel is vast; it is divided into
six parts and the illustrations are also more sophisticated. It won the Newbery
Medal for 1923.
— Excerpted from Wikipedia, the free encyclopedia.