The elements of physiography1877 |
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acid Africa angle animals Antarctic appear Arctic Arctic Ocean Asia Atlantic atmosphere augite Bay of Bengal bodies Brazil called Cape carbonic carbonic acid Caribbean Sea Caspian Sea causing centre chemical chief chiefly circle climate coast colour consists containing cubic density depth diameter distance earth east eclipse ecliptic elevation equal equator equatorial Europe falls fathoms feet felspar force globe gravity Gulf Gulf Stream heat height Hence highest point Himalayas horizontal hornblende hydrogen inches Indian instance islands lakes land latitude length light lines longitude magnetic mass matter mercury meridian moon motion Mountains namely nearly North America Northern Hemisphere occur ocean orbit owing parallax parallel particles plain planet polar poles portion rain range rays regions river rocks round side silica snow snow-line solar Southern spectrum square miles stars sun's supposed surface tablelands temperature termed tropics vapour velocity volcanoes winds zone
Popular passages
Page 146 - On the other hand, in the regions beneath the dark side, a solar eclipse of fifteen years in duration, under their shadow, must afford (to our ideas) an inhospitable asylum to animated beings, ill compensated by the faint light of the satellites. But we shall do wrong to judge of the fitness or unfitness of their condition from what we see around us, when, perhaps, the very combinations which convey to our minds only images of horror, may be in reality theatres of the most striking and glorious displays...
Page 61 - That the squares of the times of the revolutions of the planets are as the cubes of their mean distances from the sun.
Page 109 - ... 6. In fair weather, when the mercury falls much and low, and thus continues for two or three days before the rain comes, then expect a great deal of wet, and probably high winds.
Page 109 - ... 2. In very hot weather, the falling of the mercury indicates thunder. 3. In winter, the rising presages frost: and in frosty weather, if the mercury falls three or four divisions, there will be a thaw.
Page 158 - ... 1. All the brighter stars, at least, have a structure analogous to that of the sun. 2. The stars contain material elements common to the sun and earth. 3. The colours of the stars have their origin in the chemical constitution of the atmospheres which surround them. 4. The changes in brightness of some of the variable stars are attended with changes in the lines of absorption of their spectra. 5. The phenomena of the star in Corona appear to show that in this object, at least, great physical...
Page 164 - Projection. drawn of the required length for the equator. This line is divided into 36, 24, or 18 equal parts, for meridians at 10°, 15°, or 20° apart, and the meridians are then drawn through these perpendicular to AB. From a table of meridional parts (a table of the number of minutes of a degree of longitude at the equator comprised between that and every parallel of latitude up to 89°), take the distances of the parallels and of the tropics and arctic circles from the equator, and mark them...
Page 67 - The AXIS of the earth is an imaginary line passing through its centre from north to south. The...
Page 109 - When foul weather happens soon after the falling of the mercury expect but little of it ; and on the contrary, expect but little fair weather when it proves fair shortly after the mercury has risen.