xxxii, 286pp, [8pp] section of black and white photographic plates. Printed card covers. Black and white illustrated frontispiece, one black and white diagram. 8vo. <2cm section of peeling on front cover; shelf number sticker (held with tape that extends onto covers) at spine heel; lightly rubbed extremities; text block edges very lightly soiled, bottom edge lightly bumped. Inside covers, half title page, title page and copyright page have lender's markings; half-title page has a significant paper scarring (affecting titles) else internally bright and tight.
