Part 14

Ball, Sir Robert, difficulties of observation, 84; life on Mars quite likely, 68, 69; objection to Mars being inhabited, 121.

Barbour, W. D., with a four inch achromatic, 88.

Barnard's, Dr., description of dark regions, 43.

Bees, wasps, and ants, 156.

Canali supposed to mean canals, 39.

Canals appear double, 41; artificiality of, 42; as distinct as engraved lines, 59; chain of reasoning in regard to, 47; double, 41; of Mars, 40; unchangeable in position, 42.

Cassini, 33.

Chandler's oscillation of pole, 126.

Checkerboard appearance of West, 48.

Clerke's, Agnes M., expressions, 55.

Clouds in Mars, 139; in Mars, Sir Norman Lockyer, 136.

Comments and criticism, 125.

Committee of British Astronomical Association, 126.

Conception of life in other worlds, 17.

Conservatism of astronomers, 185.

Cracks all of the same nature, 108; discontinuous, 109; in asphalt pavement, 109.

Cultivation under cloth, Porto Rico, 50.

Dark regions not seas, 45.

Dawes, remarkable distinctness of vision, 89.

De la Rive, memoir of Faraday, 76.

Denning's, Mr., testimony, 56, 57.

Difficulties of seeing, 79.

Dighton Rock, 97.

Draper, Dr. Henry, "Are other worlds inhabited?" 87; difficulties of seeing, 87; high altitudes for telescopes, 88.

Drawings of Mars by different observers, 98.

Dust storms in Mars, 140.

Earth, a standard, 25, 26, 186; early ideas regarding the, 7; improbability of its being unique, 13.

Earth's distance from the sun, 11; temperature above normal, 37.