Authors: St
- Starbäck, C. Georg (Carl Georg) 1828-1885 1710 downloads
- Stone, Richard H. - 1709 downloads
- Coolidge, Calvin 1872-1933 1708 downloads
- Stoddard, Richard Henry 1825-1903 1692 downloads
- Sturm, Frank Pearce 1879-1942 1682 downloads
- Boyd, A. S. (Alexander Stuart) 1854-1930 1676 downloads
- Steward, William Augustus 1867- 1670 downloads
- Straus, Ralph 1882-1950 1670 downloads
- United States. Congress - 1669 downloads
- Stevenson, Robert Alan Mowbray 1847-1900 1657 downloads
- Meany, Edmond S. (Edmond Stephen) 1862-1935 1641 downloads
- Stamers, James - 1633 downloads
- Stephens, John L. 1805-1852 1632 downloads
- Stobart, J. C. (John Clarke) 1878-1933 1628 downloads
- Collingwood, Stuart Dodgson 1870-1937 1627 downloads
- Staley, M. L. - 1615 downloads
- Stephenson, Nathaniel W. (Nathaniel Wright) 1867-1935 1609 downloads
- Storm, Marian 1891-1975 1608 downloads
- Stedman, John Gabriel 1744-1797 1607 downloads
- Steward, T. G. (Theophilus Gould) 1843-1924 1602 downloads
- Sturt, Charles 1795-1869 1601 downloads
- Winter, John Strange 1856-1911 1597 downloads
- Cutting, Mary Stewart 1851-1924 1586 downloads
- Stahl, P.-J. 1814-1886 1581 downloads
- Illinois State Geological Survey - 1576 downloads
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