Page:Darwin Journal of Researches.djvu/19

This page has been validated.
xiii
CONTENTS.

  1.  
    CHAPTER XV.
  2. Valparaiso—Portillo Pass—Sagacity of Mules—Mountain-Torrents—Mines, how discovered—Proofs of the gradual Elevation of the Cordillera—Effect of Snow on Rocks—Geological Structure of the two main Ranges—Their distinct Origin and upheaval—Great Subsidence—Red Snow—Winds—Pinnacles of Snow—Dry and clear Atmosphere—Electricity—Pampas—Zoology of the opposite sides of the Andes—Locusts—Great Bugs—Mendoza—Uspallata Pass—Silicified Trees buried as they grew—Incas Bridge—Badness of the Passes exaggerated—Cumbre—Casuchas—Valparaiso
    ................................................................................................................................................................................................................................................................................................................................................................................................
    Page 313
  3.  
    CHAPTER XVI.
  4. Coast-road to Coquimbo—Great Loads carried by the Miners—Coquimbo—Earthquake—Step-formed Terraces—Absence of recent Deposits—Contemporaneousness of the Tertiary Formations—Excursion up the Valley—Road to Guasco—Deserts—Valley of Copiapó—Rain and Earthquakes—Hydrophobia—The Despoblado—Indian Ruins—Probable change of Climate—River-bed arched by an Earthquake—Cold Gales of Wind—Noises from a Hill—Iquique—Salt Alluvium—Nitrate of Soda—Lima—Unhealthy Country—Ruins of Callao, overthrown by an Earthquake—Recent Subsidence—Elevated Shells on San Lorenzo, their decomposition—Plain with embedded Shells and fragments of Pottery—Antiquity of the Indian Race
    ................................................................................................................................................................................................................................................................................................................................................................................................
    337
  5.  
    CHAPTER XVII.
  6. Galapagos Archipelago—The whole group volcanic—Number of Craters—Leafless Bushes—Colony at Charles Island—James Island—Salt-lake in Crater—Natural History of the Group—Ornithology, curious Finches—Reptiles—Great Tortoises, habits of—Marine Lizard, feeds on Sea-weed—Terrestrial Lizard, burrowing habits, herbivorous—Importance of Reptiles in the Archipelapo—Fish, Shells, Insects—Botany—American Type of Organisation—Differences in the Species or Races on different Islands—Tameness of the Birds—Fear of Man, an acquired Instinct
    ................................................................................................................................................................................................................................................................................................................................................................................................
    372