XV. THE ECONOMIC IMPORTANCE OF ANIMALS
Problems.—I. To determine the uses of animals.
(a) Indirectly as food.
(b) Directly as food.
(c) As domesticated animals.
(d) For clothing.
(e) Other direct economic uses.
(f) Destruction of harmful plants and animals.
II. To determine the harm done by animals.
(a) Animals destructive to those used for food.