As a corrolary of preparing the last post, I also discovered that a scan of the entirety of Haeckel's Kunstformen der Natur on the BioLib site is available here. Be warned, though - that link leads directly to a file some 130 Mb in size, so only click on it if you really want it. Not to mention the significant amount of potentially productive time lost as you sit gazing stunned at Haeckel's spectacular artworks. Check out the dinoflagellates on page 131, the octocorals on page 145, the radiolarians on page 182, the demonic boxfish on page 182... hell, almost any of the plates will do. Though I have to admit that some of the things on page 403 are a little divergent from reality.