Cambridge, MA: Sci-Art Publishers, Number 193 of 800 copies signed by A. A. Roback. Hardcover. c.1954. Green cloth, gilt titles. 8vo. 474pp. Very Good+ in Very Good dustjacket. Light shelfwear, light stain to foredge of text block, offsetting to endpapers. Sunning to dustjacket spine, light soiling, light chipping to edges.