Cornell has two copies, one bound in four volumes in brown cloth (Rare PJ1093 K58++ c.1); the other in two vellum volumes with silver clasps (Rare PJ1093 K58++ c.2). The best examples from each were chosen. Also, the locations in the Bibliographic Information field refer to Kircher’s original division of the work into three “volumes” but four separately-paginated entities, called Tomus I, Tomus II Pars I, Tomus II Pars II, Tomus III. (See the spines of the four-volume set.)
