2nd edition. 120pp, with charts, tables and some illustrations in text. Brick red cloth-covered boards with gilt lettering front and spine. 8vo. Cloth a little rubbed on corners and spine ends, gently rounded on corners. Previous owner's name neatly inked on front free endpaper. Hint of spotting on endpapers else internally neat, clean, bright and tight. In its original worn, torn and tape repaired dust wrapper, with some loss at spine head, shelf worn.
