Darwin on earthworms
Subtitle: the formation of vegetable mould through the action of worms with observations on their habits
By: by Charles Darwin ; with a foreword by James P. Martin ; and an introduction by Albert Howard.
Publisher: Bookworm Pub. Co.
Published: 1976
Place of publication: Ontario, Calif
Language: eng
Number of pages: 153
Subjects: Earthworms.; Humification.; Humus.
Work titles: Formation of vegetable mould through the action of worms.
Notes: First ed. published in 1881 under title: The formation of vegetable mould through the action of worms.

Earlier editions published under title:  Darwin on humus and the earthworm.

Includes bibliographical references and index.