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acid appears atmosphere aurora borealis azotic bodies bulk Captain Cook carbonic acid cause climate clouds coast cold colder colour conductor considerable continued degree diminution distance earth east effect elastic fluids electricity equal equator evaporation experiments exposed feet fire frequently frozen glass globe ground gulf of Bengal harmattan heat height Hence horizon hurricane hygrometer inches inches of mercury iron islands land latitude light longitude Lucretius magnet mean mercury metal meteor miles moisture monsoon months motion mountains nearly night north-east north-west northern northern hemisphere o'clock observed ocean oxygen oxygen gas particles phenomena Phil pole proportion quantity rain rarefaction seen ships side snow south-west southern specific gravity stone storm substances summer sun's supposed surface temperature thermometer tion trade-winds Trans tropic of Capricorn tube vapour velocity vessel violent voyage warmer weather whole wind blows winter
Page 508 - Olympian games or Pythian fields ; 530 Part curb their fiery steeds, or shun the goal With rapid wheels, or fronted brigades form. As when to warn proud cities, war appears Waged in the troubled sky, and armies rush To battle in the clouds, before each van Prick forth the airy knights, and couch their spears Till thickest legions close ; with feats of arms From either end of Heaven the welkin burns.
Page 306 - This kite is to be raised when a thunder-gust appears to be coming on, and the person who holds the string must stand within a door or window, or under some cover, so that the silk ribbon may not be wet; and care must be taken that the twine does not touch the frame of the door or window.
Page 264 - It was observable of all of them, but chiefly of the large pillar, that towards the end it began to appear like a hollow canal, only black in the borders, but white in the middle ; and though at first it was altogether black and opaque, yet one could very distinctly perceive the...
Page 274 - ... in a few seconds. It was some minutes before he could recollect his thoughts so as to know what was the matter; for he did not see the flash, though his eye was on the spot of the prime conductor, from...
Page 531 - The head of my shadow was surrounded at some distance by a circle of various colours, whose centre appeared to be near the situation of the eye, and whose circumference extended to the shoulders.
Page 337 - ... from the clouds to the earth, or from the earth to the clouds, runs through the walls of a...
Page 291 - These appearances we attempt to account for thus. We suppose, as aforesaid, that electrical fire is a common element, of which every one of the three persons above mentioned has his equal share, before any operation is begun with the tube. A, who stands on wax and rubs the tube, collects the electrical fire from himself into the glass ; and, his communication with the common stock being cut off by the wax, his body is not again immediately supplied.
Page 398 - The sky was generally clear when they appeared, and the air sharp and cold, the thermometer standing at the freezing point, the ship being in latitude 58° south.