Bouvard, M., 105; his observations on that portion of the horary oscillations of the pressure of the atmosphere, which depends on the attraction of the moon 313.
Bramidos y truenos of Guanaxuato, 209, 210.
Brandes, falls of shooting stars, 114, 116; height and velocity of shooting stars, 120; their periodic falls, 125, 126.
Bravais, on the Aurora, 201; on the daily oscillations of the barometer in 70 degrees north latitude, 314; distribution of the quantity of rain in Central Europe, 334; doubts on the greater dryness of mountain air, 334.
Brewster, Sir David, first detected the connection between the curvature of magnetic lines and my isothermal lines, 193.
Brongniart, Adolphe, luxuriance of the primitive vegetable world, 218; fossil flora contained in coal measures, 280.
Brongniart, Alexander, formation of ribbon jasper, 259; one of the founders of the archaeology of organic life, 273.
Brown, Robert, first discoverer of molecular motion, 341.
Buch's, Leopold von, theory on the elevation of continents and mountain chains, 45; on the craters and circular form of the island of Palma, 226; on volcanoes, 234, 238, 242, 243, 247; on metamorphic rocks, 249-252, 260, 263, 264; on the origin of various conglomerates and rocks of detritus, 269; classification of ammonites, 276, 277; physical causes of the elevation of continents, 295; on the changes in height of the Swedish coasts, 295.
Buckland, 272; on the fossil flora of the coal measures, 279.