Authors: R.
- Koehler, S. R. (Sylvester Rosa) 1837-1900 1896 downloads
- Palma, Ricardo 1833-1919 1878 downloads
- Lenz, Jakob Michael Reinhold 1751-1792 1873 downloads
- Preston, R. M. P. (Richard Martin Peter) 1884-1965 1843 downloads
- Scott, Robert Falcon 1868-1912 1835 downloads
- Cram, Ralph Adams 1863-1942 1830 downloads
- Halsey, R. T. Haines (Richard Townley Haines) 1865-1942 1812 downloads
- Schaare, C. R. (Christian Richard) 1893-1980 1807 downloads
- Auguis, P. R. (Pierre René) 1786-1846 1772 downloads
- Payró, Roberto Jorge 1867-1928 1762 downloads
- Inge, William Ralph 1860-1954 1760 downloads
- Glover, T. R. (Terrot Reaveley) 1869-1943 1747 downloads
- Stacy, John R. - 1746 downloads
- Gilbert, Robert E. 1924-1993 1742 downloads
- Playfair, R. Lambert (Robert Lambert), Sir 1828-1899 1732 downloads
- Billings, E. R. - 1729 downloads
- Johnston, Reginald Fleming, Sir 1874-1938 1704 downloads
- Bourne, H. R. Fox (Henry Richard Fox) 1837-1909 1699 downloads
- Bolles, John R. (John Rogers) 1810-1895 1697 downloads
- Effinger, John R. (John Robert) 1869-1933 1680 downloads
- Townsend, R. S. - 1679 downloads
- Calhoun, A. R. (Alfred Rochefort) 1844-1912 1674 downloads
- Martin, Helen Reimensnyder 1868-1939 1655 downloads
- Bonnycastle, Richard Henry, Sir 1791-1847 1653 downloads
- Fulton, Robert I. (Robert Irving) 1855-1916 1640 downloads
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