Up the Orinoco and down the Magdalena

by J. A. Zahm

Sachs, Carl. Aus den Llanos. Leipzig, 1879.

Schomburgk, Richard. Reisen in Britisch Guiana. Leipzig, 1840–44.

Simon, Fr. Pedro. Noticias historiales de las Conquistas de Tierra Firme. Bogotá, 1892.

Spix, J. B. and Martius, C. F. Travels in Brazil. London, 1824.

Spruce, Richard. Notes of a Botanist and the Amazon and Andes. London, 1908.

Ternaux-Compans, H. Voyages Rélations et Memoires Originaux pour servir à Histoire de la découverte de l’Amérique. Paris, 1837–1841.

Thatcher, J. B. Christopher Columbus, His Life, His Works, His Remains. New York, 1904.

Thornsburg, Geo. W. The Monarchs of the Main, or Adventures of the Buccaneers. London, 1855.

Thurn, Everard T. Im. Among the Indians of Guiana. London, 1883.

Triana, Perez. Down the Orinoco in a Canoe. London, 1902.