1953. First Edition. 199 pages. Photographic jacket over green cloth with gilt titles to spine. Illustrated by the author. Includes photographic plates. Includes various diagrams. Pages have slight foxing, tanning and minor thumbing. Endpapers have strips of tanning and foxing caused by jacket. Plates are clean with minor thumbing and foxing. Boards have some moderate edge wear, with slight bumping to corners and minor bumping and sunning to spine ends. Gilt is bright. Unclipped jacket has moderate edgewear with chips, tears and creasing. Various marks, with faint water stains to rear. Jacket is noticeably rubbed and marked overall. Loss to front and spine ends.