Studer, Professor, on mineral metamorphism. See note by Translator, 248.
Sun, magnitude of its volume compared with that of the fixed stars, 136; obscuration of its disk, 132; rotation round the center of gravity of the whole solar system, 145; velocity of its translatory motion, 145; narrow limitations of its atmosphere as compared with the nucleus of other nebulous stars, 141; "sun stones" of the ancients, 122; views of the Greek philosophers on the sun, 122.
Symond, Lieut., his trigonometrical survey of the Dead Sea, 296, 297.
Tacitus, distinguished local climatic relations from those of race, 352.
Temperature of the globe, see Earth and Ocean; remarkable uniformity over the same spaces of the surface of the ocean, 303; zones at which occur the maxima of the oceanic temperature, 319; causes which lower the temperature, 319, 320; temperature of various places, annual, and in the different seasons, 322, 323-328; thermic scale of temperature, 324, 325; of continental climates as compared with insular and littoral climates, 321, 322; law of decrease with increase of elevation, 327; depression of, by shoals, 309; refrigeration of the lower strata of the ocean, 303.
Teneriffe, Peak of its striking scenery, 26.
Theodectes of Phaselis on the color of the Ethiopians, 353.
Theon of Alexandria described comets as "wandering light clouds," 100.
Theophylactus described Scythia as free from earthquakes, 204.
Thermal scales of cultivated plants, 324, 325.