Storms, terrible nature of, in early history of creation, 1; general rules for forecasting, 75-79; general action of, 115; great eddies in atmosphere, 118; movement of, 118, 119; cold waves as affecting speed of, 123-126; locality of origin of majority of our, 132; general movement of, 133; equinoctial, 140; tornadoes, 141-148; and their relation to density of population, 220-223; ten-year record of, 221, 222; area and movement of cyclonic, 231; Weather Bureau’s study of types of, 299, 300; peculiar action of barometer in some types of, 299, 300; Weather Bureau detects inception of, 302; frequency of, 304 Storm tracks, civilization follows the, 213-224 Stratus clouds, 288 Strength, temperature and its relation to physical, 216 Sub-permanent Highs and Lows, 158; of the Pacific a bar to storms from the Orient, 158; effect of change of position of, 158-160; in the region of Iceland and Bermuda, 159 Sulphates, in atmosphere, 33 Sulphur, nucleus of atom of, 31, 32 Summer, difference in length of, in northern and southern hemispheres, 169 Summer resort, an aërial, 13, 14 Summer temperature gradients in isothermal stratum, 12 Sun, atmosphere of the, 2; conditions for beginning of life on the, 2, 3; will be no life on, 3; effect on earth of cooling of the, 4; transmission of rays of, by the ether, 7, 8; absorption by oxygen, nitrogen, and water vapor of rays of, 8; and twilight, 46, 47; comparison of heat of earth and of, 48; mock, 141; only source of appreciable heat, 162; earth’s orbit around, 165; cause of variation in heat of, reaching earth, 166; absorption by atmosphere of rays of, 166 Sunshine, life in the open air and, 247-249; destroys molds, 248 Supra-red rays, remedial powers of, 248 Tampa, Fla., temperature and rainfall at, 261; meteorological statistics for, 264 Telescope, agitations of sun’s atmosphere revealed by, 2 Temperate zone, highest type of civilization found in the, 213-224