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geological problem which has not been sufficiently considered, 12;
characteristic aspect of vegetation in the tropics, 30;
characteristic vegetation of the Alps and Andes at great elevations, 35.
Vesuvius, measurements of height at different periods, ii. 225, 243;
particulars of the eruption of 1822, 228.
Vital force, the, or Rhodian Genius, ii. 251.
Volcanos of the Thian-schan chain situated in the interior of Asia far distant from the sea, i. 88;
structure and mode of action of, ii. 213;
instances of extensive volcanic connection, 221;
importance of repeating exact measurements of the heights of craters, 224.
Willows, ii. 28, 193.
THE END.
Wilson and Ogilvy, Printers, 57. Skinner Street, Snowhill, London.
