1964. No Edition Stated. 411 pages. No dust jacket. Green patterned cloth. Includes work by various writers. Edited by Lewis Thomas et al. Photos embedded in text. Pages remain bright and clear with minimal tanning or foxing. Previous owner's inscription to front pastedown. Small ink spots to margins p91. Text block edges are a little tanned and foxed. Boards have some moderate edge wear, with slight bumping to corners and minor bumping to spine ends. Boards a little rubbed and marked overall.