1955. Tenth Edition. 256 pages. No dust jacket. White cloth boards with lettering. Contains black and white illustrations. Clean pages and illustration with light tanning and mild foxing throughout. More pronounced to free endpapers and pastedowns. Scuffing and ink stamp marks to half title page. Hinges are moderately cracked with exposed netting. Binding is slightly loose. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Lettering is darkened. Minor tanning to spine and edges with crushing to spine ends. Minor splits to spine ends and corners causing cloth to be frayed. Book has a slight forward lean. Visible wear marks to boards.