Ettingshausen, C. von — Uber die Nervation der Celastrineen.

1857 41 p., 34 figs, 10 tinted nature print pls, roy. 4to, disbound (no covers, partly loose). Unopened copy. Plates with some slight scattered foxing. Published in: Denkschriften der Kaiserlichen Akademie der Wissenschaften. Rare. The plates are very special as they are one of the first using a technique in which actual leaf specimens are used to print with (Naturselbstdruck or nature printing).