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Show Ul\Il\IARY OF THE CONTENTS. 467 the 3d century, to "form just conjectures respecting the cause of the incr~ase of temperature in the interior of the earth . . . 398-399 The rital Forcej or, the Rhodian Genius-p. 403 top. 407. Note to "The Vital Forcej or, the Rhodian Gentus"-p. 408 top. 410. The Rhodian Geniu the development of a physiological idea in a mythical garb. Difference of views respecting the hypothesis of peculiar vital forces . 401 The difficulty .of satisfactorily reducing the vital phenomena of organization to physical and chemical laws, is principally founded on the complication of the phenomena, and on the multiplicity of simultaneously acting forces, as well as the varying conditions of the activity of those forces. Definition of the expressions "animate" and "inanimate" substances. Criteria derived from the composition of the elements after a substance has been separated into parts by external agency are the simple enunciation of facts 408-410 The Plateau of Caxa:marca, the ancient residence of the Inca Atahuallpa, and the frst view of the Pacific from the crest of the Andes-p. 411 to p. 438. Quina-producing forests in the valleys of Loxa. First use of the feverbark in Europe; the Countess of Chinchon, wife of the Viceroy 413- 414 Alpine vegetation of the Paramos. Remains of Ancient Peruvian artificial roads; they rise in the Paramo del Assuay almost to the height of the summit of Mont Blanc . 414- 420 Singular mode of communication by a "swimming post" messenger 420- 421 Descent to the Amazons River. Vegetation round Chamaya and Tomepanda; Red Groves of Bougainvillrea. Ridges of rock traverse the Amazons. Its breadth at the Pongo de Manseriche less than 160 English feet. The falling in of masses of rock at Rentema left the bed of the river below the falls dry for some hours, to the great alarm of those who lived on the banks . . . . . 421-423 Passage across the chain of the Andes at the part where it is intersected by the magnetic equator. Ammonites nearly 15 English inches long, Echini, and Isocardias of the cretaceous group, collected between Guambos and Montan, 121790 English feet above the level of the sea. Rich silver mines of Chota. The picturesquely towering Cerro de Gualgayoc. Large mass of pure native silver in filaments or wire found in the Pampa de Navar. A fine piece of pure gold, wound round with similar threads of silver, found in the Choropampa (field of shells), so called from the numerous fossils. Outbursts of silver and gold ores amongst the cretaceous rocks. The |