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 Casuarineæ, ii. 25, 152.

Caxamarca, the ancient capital of the Incas, ii. 267, 287.

Cereals.—Original country of the principal Cereals discussed, i. 169.

Chibchas, ii. 309.

Chimborazo, conjectures as to the origin of the name, ii. 37.

Chota, silver mines of, ii. 282.

Cinchona, fever-bark, or quina, ii. 267, 305.

Climate of the eastern or flat portions of South America widely different from that of Africa in the same latitudes, causes of the difference, i. 8, 123; the southern hemisphere cooler and moister than the northern, 139.

Climatic effects of extensive forests, i. 126.

Cœlebogyne, produces perfect seeds without any trace of pollen having been discovered, ii. 51.

Condor.—Discussion of the height in the atmosphere to which the condor ascends, ii. 40.

Coniferæ, or needle trees, ii. 25, 175.

Coral reefs, classified by Darwin, ii. 64; his hypothesis of the origin and growth of coral reefs, 76.

Correo que nada, the "swimming post" in the upper waters of the Amazons river, ii. 277.

Curare, plant from which the poison is obtained, i. 203.

Current.—Great revolving current of the Atlantic Ocean discussed, i, 159.

Dogs.—European dogs have become wild in South America, and live in troops in the Pampas, i. 107; native Peruvian dogs, 108; Tschudi's remarks on the indigenous races of dogs in America, 111.

Dragon-tree of Orotava, ii. 16, 85.

Esquimaux, instances recorded of their having been carried across the Atlantic to the shores of Europe, i. 162.

Ferns, ii. 28, 188.

Figured rocks, i. e. figures engraven on rocks in an extensive district of South America, i. 196.

Fresh-water springs in the ocean near Cuba, i. 233.