Part 24

Joe-Pye-weed, 116.

Junco, young, 19, 20; nesting, 81; abundance, 82.

Kepler, Johann, 169.

Killdeer, 130, 131.

Kingbird, flight, 37; and bees, 156.

Leaves, autumn, 1-3.

Lemmings, 152, 153.

Life, origin of, 194, 195.

Life, human, analogies, 25-27.

Lightning-bugs. See Fireflies.

Lowell, James Russell, quoted, 5.

Lubbock, Sir John, quoted, 156.

McCarthy, Denis Aloysius, quoted, 157.

Maeterlinck, Maurice, quoted, 23, 162; on the bee, 156-63.

Man, and Darwinism, 174; a part of nature, 184-86; interpretation of nature and of himself, 186-90; mystery of his evolution, 216.

Maple, sugar, susceptibility to atmospheric changes, 72, 73.

Maples, autumn color, 3.

Marcus Aurelius, quoted, 185.

Meadowlark, song flight, 37.

Measuring-worm, 91, 92.

Mice, wild, 16; barking trees, 27, 28.

Microphone, 170, 171.

Microseisms, 170.

Mind, community of, 152-55.

Mockingbird, 68.

Moose, 200.

Mosquitoes, 210.

Moth, luna, 97.