Harnessing the earthworm
Subtitle: a practical inquiry into soil-building, soil-conditioning and plant nutrition through the action of earthworms
By: with instructions for intensive propagation and use of domesticated earthworms in biological soil-building.
Publisher: B. Humphries
Published: 1948
Place of publication: Boston
Language: eng
Number of pages: 184
Subjects: Earthworm culture.; Earthworms.