The farmer's letters to the people of England [electronic resource] : Containing the sentiments of a practical husbandman, on various subjects of the utmost importance: particularly the exportation of corn. The balance of agriculture and manufactures. The present state of husbandry. The circumstances attending large and small farms. The present state of the poor. The proceedings of the Society for the encouragement of arts, &c. The importance of timber and planting. Emigrations to the colonies, &c. &c. &c. To which is added, Sylvæ: or, occasional tracts on husbandry and rural œconomics.