One of the first and best works on bird eggs and nests, and almost never found complete. First volume (of two). The first author, Adam Ludwig Wirsing (1734-1798) was a versatile German engraver with a keen interest in natural history, and author of an equally famous work on marble and other metamorphic rocks. The German medical doctor, civil servant and naturalist (principally ornithologist) Friedrich Christian Günther (1726-1774) was responsible for the descriptive text. A second volume was published after Günther's death and remained without text. Boards somewhat rubbed. Apart from one small spot and some very light thumbing in the lower outer margins a meticulously clean copy. Anker, 537; Nissen IVB, 1002; Sitwell, Fine bird books , 157; Not in Zimmer.