Ehrenberg, C. G.
Verbreitung und Einfluss des mikroskopischen Lebens in Sud- und Nord-Amerika. Ein Vortrag. Gelesen in der Königl. Preuss. Akademie der Wissenschaften zu Berlin am 25 März und 10 Juni 1841 mit spätern Zusätzen. Nebst 4 colorirten Kupfertafeln.
Berlin, Königliche Preussische Akademie der Wissenschaften zu Berlin, 1843. Tall folio (41.1 x 27.5 cm). Title page, dedication page, 158 pp.;four partly hand-coloured engraved plates. Original blind grey-blue wrappers.
Separate issue, in large paper size, of this rare work of fundamental importance to the knowledge of the Protozoa, including Foraminifera, and unicellular algae. A smaller sized offprint with the plates folded also exists, but also very rare. The four plates show diatoms, foraminifers and other microscopic organisms from the Falkland Islands, Cayenne, Real del Monte, and New York, respectively. More species are reported from many additional localities (for instance: several Caribbean islands; several U.S. states, etc., etc.). Christian Gottfried Ehrenberg (1795-1876) was a German naturalist, explorer, zoologist, comparative anatomist, geologist, palaeontologist, and microscopist. He is perhaps best known for his works on micro organisms, writing extensively on "Infusionsthierchen" (Infusoria). Wrappers a little frayed on edges, and spine cover perished; title page foxed but otherwise internally a very good, clean copy. Cat. BM(NH) 2, p. 515; Sabin, 22070. Not in Nissen ZBI.