Milde, J. — Monographia Equisetorum.

1865 (1867) [16], 605, [2] p., 35 mostly folded and partly col. lithographed pls, 4to, paperbound (spine reinforced with strip of black cloth). Published in: Verhandlungen der Kaiserlichen Leopoldino-Carolinischen deutschen Akademie der Naturforscher. Rare. A good and clean copy of this very important, and beautifully illustrated monograph on horsetails.