by Ellsworth P. Killip , C. V. Morton
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The flora of Mount Auyan-Tepui, Venezuel...
The identity of the South American fish ...
Natural history of Plummers Island, Mary...
New species of Pilea from the Andes
Venezuelan species of Valeriana, section...
New species of Bomarea from the Andes
The properties and preparation of the Ri...
Della lunga e calamitosa infermità e del...
The Indian species of smilax
Epistola, rationem modumq́; propinandi r...
Two new plants from the tertiary rocks o...
Facts are stubborn things