WARBURG, Dr Otto. Die Pflanzenwelt. Leipzig: Bibliographisches Institut. 1923
8vo. 3 vols. Original half brown leather, marbled boards; pp. xii + 619, xii + 544, xii + 552, 93 plates (many in colour with tissue guards featuring overlaid text) and text illustrations throughout; very good.
First edition. Text in German. A highly attractive and comprehensive guide to the plant kingdom.