BURROUGHS, EDGAR RICE. At The Earth's Core. Illustrated by J. Allen St. John. 8vo, publisher's pale green cloth stamped in black, minor edgewear; unclipped dust jacket, flap folds rubbed, several archival tape repairs and paper restorations to verso, fingersoiling, short closed tears along bottom edge; small stain at bottom of fore-edge, else fine; cloth clamshell case. first edition, first printing. The first in the Pellucidar series in the scarce dust jacket. Heins P1.1 Chicago: A.C. McClurg & Co., 1922