Land plaster, 200.

Laws of nature, 5.

Leaf work, conditions necessary for, 114.
interfered with, 115, 118.

Leather as a fertilizer, 195.

Leaves, 8, 108.
digest food, 114.
facts about, 108.
functions of, 109.
manufacture starch, 112.
transpire water, 110.

Legume family, 86.

Legumes, definition of, 68.
nitrogen fixers, 68, 186, 144.
value as green manure plants, 144, 185.

Leguminous plants, 68.

Light necessary for leaf work, 114.

Lily family, 86.

Lime, 200.