1930. Sixth Edition. 818 pages. No dust jacket. Green cloth boards with gilt lettering. Contains black and white and colour illustrations. Clean pages and illustrations with light tanning and mild foxing throughout. More pronounced to free endpapers and pastedowns. Pen inscription to front free endpaper. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Gilt lettering is bright and clear. Moderate sunning to spine and edges with crushing to spine ends. Minor splits to spine ends and corners causing cloth to be frayed. Minor wear marks to boards.