THE term Land in political economy means the natural or passive element in production, and includes the whole external world accessible to man, with all its powers, qualities, and products, except perhaps those portions of it which are for the time included in man's body or in his products, and which therefore temporarily belong to the categories, man and wealth, passing again in their reabsorption by nature into the category, land.
— The Science
of Political Economy — unabridged: Book III,
Chapter 14: The Production of Wealth, Order of the Three
Factors of Production •
abridged: Part III, Chapter 10: Order of the Three Factors of Production