Part 22

Dana, Richard Henry, Jr., at San Diego, 210, 211.

Darwin, Charles, quoted, 5,17, 18, 33; his eager study of natural history, 17, 18; observations during the voyage of the Beagle, 18, 19; failure of his theory, 147, 167-69; his mind, 173; treated man as an animal, 174.

Darwin, George Howard, on the tides, 169, 170.

Darwinism, a cause of the World War, 172-75.

Death, an analogy of, 185, 186.

Desert, vegetation of the, 143-48.

Dove, mourning, or turtle-dove, 86.

Earth, the, quiverings of the surface, 169-71; the Northern and Southern Hemispheres, 171, 172.

Edison, Thomas A., 114, 119; contrasted with Mr. Ford, 122-25.

Elm, autumn color, 3.

Emerson, Ralph Waldo, quoted, 69, 165, 186.

Erosion, as sculpture, 181-83.

Fabre, Jean Henri, 162; quoted, 139.

Far-away, the, 39.

Fear in animals, 58, 59, 154, 155, 209.

Fireflies, 19.

Firestone, H. S., 119, 125.

Fish, schools of, 154.

Fleas, 210.

Flies, intelligence, 156, 157.

Foraminiferæ, 194.

Ford, Henry, 113, 114, 119, 120; contrasted with Mr. Edison, 122-24.

Foxes, 180.

Frog, wood, 94, 95.

Germans, Darwinism, and the World War, 172-75.

Giraffe, 200.

Girls, two West Virginia, 115.

Gnatcatcher, blue-gray, 103.