1946. Fourth Edition. 349 pages. Illustrated dust jacket over blue cloth boards. Gilt lettering. Contains black and white plates. Second Volume. Clean pages and plates with light tanning and mild foxing throughout. More pronounced to free endpapers and pastedowns. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Gilt lettering is bright and clear. Minor splits to spine ends and corners causing cloth to be frayed. Minor wear marks to boards. Unclipped jacket. Panels and spine have moderate edgewear with chips, tears and creases. Moderate loss to spine and edges. Visible wear marks to spine and panels.