38 
IOWA ACADEMY OF SCIENCES. 
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1895, 1; Wetherill, H. E., 1894, 1; Whitford, H. N. , 1901, 1; Wickstrom, 
J. E. 1827, 1; Williams, T. A., 1889,13; Willey, H., 1867, 27; Wilson, L. H., 
1894, 1; Wilson, G., 1894, 1; Wolf, J., 1878, 1; Woods, A., F.,1901, 1; 
Wright, C., 1847, 1; Zahlbruckner, A., 1900, 3. 
