in their perfect state of development
Contributions to the natural history of the Acalephae of North America, Part 1. (communicated to the Academy, May 8th and May 29th, 1849)
by L. Agassiz
4to. [29x24cm]. 93 pages [224-316] + 7 lithograph plates.
very good condition in a contemporary quarter calf over marbled paper boards binding. fading and a little rubbing to board edges. light foxing to three of the plates.