Author: Schaeffer, J. C.
Title: Die grünen Armpolypen. Die geschwänzten und ungeschwänzten zackigen Wasserflöhe und eine besondere art kleiner Wasseraale.
Description: Regensburg, E. Weiss, 1755. 4to (22.0 x 18.5 cm). Title page, [iv], 94 pp., three handcoloured folded engraved plates. Original blind boards. = First edition of a rare work, or rather three papers combined, by the German polymath Jacob Christian Schaeffer (1718-1790). Schaeffer published many original observations on microscopic life. These three papers were published jointly, with one title. A second edition was published in 1763. Erased library stamp on the title page; two old owner's names, dated 1758, and 1744, on title page verso. Nissen ZBI, 3622.

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