1950. 2nd Edition. 329 pages. No dust jacket. Red cloth. Black and white photographs and illustrations throughout. Volume IV. Binding remains firm. Pages and illustrations have light tanning and foxing throughout. Water staining to bottom edge of first few pages, text remains unaffected. Previous owner's inscription to front pastedown. Boards have light shelf-wear with corner bumping. Slight crushing to spine ends. Wear marks overall.