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Subjects: (Eugene Woldemar),; (Otto Hilgard),; 1809-1884; 1833-1916; 1850-1938; Correspondence; Engelmann, George,; Fagaceae; Hilgard, Eugene W; Kelps; Letters; Liliaceae; Malva; Malvaceae; Quercus; Receipts (Acknowledgments); Report writing; Tittmann, O. H; Yucca</div>
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Tittmann, O. H.</div>
Internet Archive identifier