Doctor Dolittle establishes a swallow mail service for the animals when he discovers that they have their own way of writing.
- ISBN10 0440400961
- ISBN13 9780440400967
- Publish Date 1 September 1988
- Publish Status Active
- Publish Country US
- Imprint Yearling Books
- Edition Centenary ed.
- Format Paperback (US Trade)
- Pages 271
- Language English