IOWA ACADEMY OF SCIENCES. 
37 
LIST OF AUTHORS. EARLIEST DATES AND NUMBER OF TITLES. 
Acharius, E., 1803, 3; Agassiz, L., 1850, 1; Arnold, F., 1896, 3; Arthur, 
J. C., 1882, 3; Babington, C., 1851, 4; Bachelon, P., 1826, 1; Bailey, L. H. , 
1887, 1; Bell, R., 1861, 2; Bennett, J. L., 1888, 1; Bessey, C. E., 1882, 4; 
Bitter, G., 1901, 1; Bogue, E. E. 1893, 3; Bolander, H. N., 1870, 1; 
Branth, J. S. D., 1894, 2; Brendel, F., 1887, 1; Britton, L. N., 1884, 1; 
Brown, R. , 1825, 1; Calkins, W. W., 1885, 10; Chesnut, V. K., 1902, 1; 
Clements, F. E., 1897, 2; Cockerell, T. D., 1889, 1; Coulter, J. M., 1898, 
1; Craigin, F. W. , 1886, 1; Cummings, Clara E., 1888, 13; Curtis, C. C., 
1894, 1; Curtis, M. A., 1867, 1; Darbishire, O. V., R97, 2; Darlington, W. , 
1853, 1; Davis, B. M., 1899, 1; Day, D. F. , 1883, 1; Day, Mary, A., 1899, 2; 
Dickie, G. , 1869,2; Dillenius, J. J., 1768, 1; Drummond, A. T., 1861, 3; 
Durand, E., 1855, 3; Eaton, A., 1817, 4; Eby, Amelia F., 1894, 3; Eck- 
feldt, J W., 1886, 13; Farlow, W. G. , 1883, 4; Fink, B., 1895,24; Fisher, 
J. O. R., 1895, 1; Fowler, I., 1901, 1; Fries, Th. M., 1860, 3; Frost, W. 
D., 1894, 1; Ganong, W. F. , 1897, 1; Gerard, W. R. , 1875, 2; Gray, A., 1886, 
1; Greeley, A. W. , 1886, 2; Gronovius, D. J. F. , 1739; 1; Green, H. A., 1887, 
2; Greene, E. L. , 1901, 2; Hale, T. J., 1860, 1; Hall, E., 1878, 1; Hall, F.W., 
1877, 1; Halsey, A., 1823, 1; Harris, Carolyn W. , 1901, 11; Harvey, F. L., 
1894, 3; Hasse, H. E., 1895, 10; Heller, A. A., 1893, 2; Hensel, S. T., 1902, 1; 
Hind, H.Y., 1863, 1; Hitchcock, E. , 1829,3; Holm, T., 1887, 1; Hooker, J. D., 
1861, 2; Hooker, W. J., 1832, 2; Holway, E. W. D., 1887, 1; Hue, A. M., 1892, 
2; Hulting, J., 1896, 2; Husband, Mabel, 1903, 1; Jelliffe, S E. , 1890, 2; 
Kearney, F. H., 1900, 1; Kellerman, W. A., 1895, 1; Knight, O. W., 1897, 1; 
Knowlton, F. H., 1886, 2; Krempelhuber, A. v., 1861, 3; Kurtz, F., 1891, 
1; Lapham, L. A., 1852, 2; Lehnest, E., 1886, 2; Leighton, W. A., 1865, 
2; Lindsay, W. L., 1861, 3; Linnaeus, C., 1753, 1; Macoun, J., 1877, 6; 
McClatchie, A. J., 1895, 2; MacMillan, C., 1897, 1; Massee, G., 1887, 1; 
Merrill, E. D., 1900, 1; Meyer, E., 1830, 1; Michaux, A., 1803, 1; 
Michener, E., 1883, 1; Millspaugh, C. F., 1892,3; Minks, A. , 1900,2; 
Mohr, C. , 1901, 1; Montagne, C. , 1838, 1; Morgan, A. P., 1896,1; Muhlen- 
berg, H. 1793, 3; Muller, J. 1877, 24; Nelson, A., 1896, 2; Northrop, Alice 
R., 1902, 1; Nuttall, T. , 1834, 2; Nylander, W., 1857, 24; Olney, S. T., 
1845, 1; Parry, C. C., 1848, 1; Peck, C. H., 1872,6; Peirce, G. J. , 1898, 4; 
Persoon, C. H. , 1810, 1; Petiver, J., 1712, 1; Plumier, C., 1703, 1; Porcher, 
F. P. , 1854, 1; Pound, R., 1889, 2; Presl, K. B., 1825, 1; Provancier, L,, 
1862, 1; Rand, E. L., 1894, 1; Rau, E. A., 1888, 1; Ravenel, H. W. , 1850, 
1; Redfield , J. H., 1888, 1; Rolfs, P. H., 1901, 1; Rothrock, J. T., 1867, 2; 
Russell, J. L. , 1839, 8; Sadler, J. 1863, 1; Sargent, F. L., 1886, 5; Schaffner, 
J. H., 1903, 1; Sehlechtendal, D. F. L. , 1836, 1; Schneider, A., 1894, 8; 
Schrenk, A. v., 1898, 1; Seymour, A. B. (exsiccati with Cummings and 
Williams); Sloan, H., 1896, 1; Smith , J. G. , 1893, 1; Sprague, C. J. , 1880,1; 
Stirton, J., 1875, 1; Stizenberger, E.,1862, 7; Sturgis, W. C., 1890, 1; Sturm, 
J., 1811,1; Swartz, Q , 1786, 4; Torrey , J. , 1819, 3; Tuckerman, E., 1839, 48; 
Turner, L. M., 1888, 1; Tyrrell, J. B., 1898, 1; Underwood, L. M. , 1894, 1; Wag- 
