xiv, 832pp, with black and white plate illustrations, diagrams and charts etc in text, maps on endpapers. In blue cloth boards with gilt titles on spine. Thick 8vo. Cloth worn and a little rounded on corners and spine ends, some minor indentations on a slightly sunned spine. Text block edges a little darkened. Previous owner's name neatly inked on front paste down and some mild toning on first and last few leaves.