London: Richard Bentley, 1841. 3 volumes. 8vo, early 20th-century 3/4 calf with ornately gilt spines; marbled boards and endpapers, all edges gilt. Frontispiece portraits in each volume with tinted tissue guards, 2 additional engraved portrait plates to volume III, and bound with half-titles in volumes II and III (as issued). London: Richard Bentley, 1841. First Edition. A near fine copy of this scarce title. First edition of Mackay's important work of social psychology, studying the "madness of crowds" in its..... More