كتب ذات صلة

The principles of soil management

On the nature and property of soils their connexion with the geological formation on which they rest, the best means of permanently increasing their productiveness, and on the rent and profits of agriculture

Lessons on soil.

La décomposition des matières organiques et les formes d''humus dans leurs rapports avec l''agriculture. Traduit de l''allemand par E. Henry. Préf. de L. Grandeau.

• What Mr. Darwin saw in his voyage round the world in the ship "Beagle."
  المؤلفون: Darwin, Charles
• The various contrivances by which orchids are fertilised by insects
  المؤلفون: Darwin, Charles
• The variation of animals and plants under domestication
  المؤلفون: Darwin, Charles