.html version copyright © 2015–2025 Henriette Kress.
You'll find online and .pdf versions here:
- Vol. 1-4 at Botanicus (scan from mobot) (beautiful scans, images in black and white)
- Vol. 1-4 at the Universitäts- und Landesbibliothek Heinrich Heine, Düsseldorf (beautiful scans, images in color)
- Vol. 2, from Emory University, beautiful scan on archive.org.
(I've omitted the 1810 and 1832 editions from this link collection.)
