Barometer, the increase of its height attended by a depression of the level of the sea, 298; horary oscillations of, 314, 315
Batten, Mr., letter on the snow-line of the two sides of the Himalayas, 331, 332.
Beaufort, Capt., observed the emissions of inflammable gas on the Caramanian coast, as described by Pliny, 223. See also, note by Translator, 223.
Beaumont, Elie de, on the uplifting of mountain chains, 51, 300; influence of the rocks of melaphyre and serpentine, on pendulum experiments, 167; conjectures on the quartz strata of the Col de la Poissoniere, 266.
Baccaria, observation of steady luminous appearance in the clouds, 202; of lightning clouds, unaccompanied by thunder or indication of storm, 337.
Beechey, Capt., 97; observations on the temperature and density of the water of the ocean under different zones of longitude and latitude, 306.
Bembo, Cardinal, his observations on the eruptions of Mount Aetna, 229; theory of the necessity of the proximity of volcanoes to the sea, 243; vegetation on the declivity of Aetna, 347.
Berard, Capt., shooting stars, 119.
Berton, Count, his barometrical measurements of the Dead Sea, 296.
Berzelins on the chemical elements of aerolites, 130, 131.