Shepard (A. K.), The Land of the Aztecs. Albany, 1859.
Shepard (A. K.), Papers on Spanish America. Albany, 1868.
Shuck (Oscar T.), The California Scrap-Book. San Francisco, 1869.
Shufeldt (Robert W.), Reports of Explorations. Ship-Canal by way of Tehuantepec. (42d Cong., 2d Sess., Ex. Doc. 6.) Washington, 1872. 4to.
Sigüenza y Góngora (Carlos de), Parayso Occidental. Mexico, 1684.
Sigüenza y Góngora (Carlos de), Teatro de Virtudes Políticas. In Doc. Hist. Mex., serie iii., pt. iii.
Silliman (Benjamin), The American Journal of Science. New Haven, 1819 et seq. 107 vols.
Simon (Mrs), The Ten Tribes of Israel Historically identified with the Aborigines of the Western Hemisphere. London, 1836.
Simpson (George), Narrative of a Journey round the World. London, 1847. 2 vols.
Simpson (James H.), Coronado's March in search of the "Seven Cities of Cíbola." In Smithsonian Report, 1869.