Chicago: University of Chicago Press. 1950. First Edition in English. Hardcover. Octavo, original red cloth titled in gilt on spine panel. (ix), 274, . Tiny bump to lower front corner, a very good bright copy in dust jacket, minor fraying to spots along top edge, price corner clipped. Very Good in Dust Jacket. Item #309969
¶ The first publication of many key medieval Latin texts on comets including the writings of Aegidius of Lessines, & Peter of Limoges.