Authors: H.
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- Robinson, James Harvey 1863-1936 2963 downloads
- Reuterdahl, Henry 1871-1925 2949 downloads
- Gunning, J. H. 1859-1951 2932 downloads
- Guppy, H. B. (Henry Brougham) 1854-1926 2897 downloads
- Rothman, David H. - 2884 downloads
- Riesenberg, Sidney H. 1885-1971 2883 downloads
- Poincaré, Henri 1854-1912 2851 downloads
- Hewet, Henry W. - 2845 downloads
- Wilson, Hazel Hutchins 1898-1992 2825 downloads
- Shackleton, Ernest Henry, Sir 1874-1922 2815 downloads
- Japp, Alexander H. (Alexander Hay) 1839-1905 2796 downloads
- Needler, G. H. (George Henry) 1866-1962 2795 downloads
- Wheldon, Rupert H. - 2787 downloads
- Shepherd, Richard Herne 1842-1895 2771 downloads
- Kellogg, John Harvey 1852-1943 2746 downloads
- Morgan, J. H. (John Hartman) 1876-1955 2737 downloads
- Mackenzie, Kenneth R. H. (Kenneth Robert Henderson) 1833-1886 2737 downloads
- Gardener, Helen H. (Helen Hamilton) 1853-1925 2730 downloads
- Willebeek le Mair, H. (Henriëtte) 1889-1966 2729 downloads
- Humphreys, Henry Noel 1810-1879 2718 downloads
- Elson, William H. (William Harris) 1856-1935 2716 downloads
- Pearce, J. H. (Joseph Henry) 1856- 2715 downloads
- Brett, Harold 1880-1955 2711 downloads
- Sawyer, Frederic H. - 2710 downloads
- Barth, Heinrich 1821-1865 2701 downloads