[NATURAL HISTORY]. UNGER, F. Ideal Views of the Primitive World, in its Geological and Paleontological Phases. Edited by Samuel Highley. London: Taylor and Francis, n.d. [1880s?]. 4to. 17 mounted albumen prints. (Spotting throughout). Original morocco gilt (spine partially perished, front cover detached, extremities rubbed). A RARE WORK containing original photographic plates.