首页 / 官方藏书 / American Journal of Science, Vol. 1. / Art. XVII. On the Comparative Quantity of Nutritious Matter which may be obtained from an Acre of Land when cultivated with Potatoes or Wheat.
首页 / 官方藏书 / American Journal of Science, Vol. 1. / Art. XVII. On the Comparative Quantity of Nutritious Matter which may be obtained from an Acre of Land when cultivated with Potatoes or Wheat.