Complete four volume set of the Second Edition, revised and enlarged. Interior of all four volumes is generally solid and tight. Occasional bit of foxing and the odd moisture stain. Deep maroon leather (?) boards show mild to heavy moisture markings to front & rear boards of all 4 vols. Solid red edges. Gilt titles to spine & front boards. Blind stamped decorative devices to front and rear boards. Numerous colour plates through out. Vols. I and II have a unique "fold out" illustration attached to the rear board that reveals more organs each time your open part of the illustration. An interesting perspective on home "doctoring" during the early 20th century.