Authors: 1923
- Lewis, Charlton M. (Charlton Miner) 1866-1923 837 downloads
- Reinsch, Paul S. (Paul Samuel) 1869-1923 827 downloads
- Winchester, Boyd 1836-1923 809 downloads
- Haslam, George 1858-1923 788 downloads
- Heckel, Karl 1858-1923 784 downloads
- Phoutrides, Aristides E. (Aristides Evangelus) 1887-1923 784 downloads
- Abernethy, J. W. (Julian Willis) 1853-1923 784 downloads
- Gunn, James E. 1923-2020 773 downloads
- Birge, Julius Charles 1839-1923 768 downloads
- Cresson, Benjamin Franklin 1873-1923 765 downloads
- MacArthur, Robert Stuart 1841-1923 762 downloads
- Sperani, Bruno 1839-1923 751 downloads
- Tregarthen, Enys 1851-1923 729 downloads
- Fletcher, Alice C. (Alice Cunningham) 1838-1923 714 downloads
- Vollmer, Friedrich 1867-1923 703 downloads
- Huntington, Faye 1838-1923 703 downloads
- Wolf, George D. 1923- 701 downloads
- Tsokopoulos, George B. 1871-1923 698 downloads
- Fernández Bolívar, Víctor José 1923- 685 downloads
- Kalff, Gerrit 1856-1923 684 downloads
- Blotner, Joseph 1923-2012 683 downloads
- Townshend, R. B. (Richard Baxter) 1846-1923 682 downloads
- Herbin, John Frederic 1860-1923 663 downloads
- Williams, C. F. Abdy (Charles Francis Abdy) 1855-1923 661 downloads
- Sidis, Boris 1867-1923 649 downloads
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