1962. Sixth Edition. 327 pages. No dust jacket. Brown boards with black lettering in a blue text box to spine and front. Black and white illustrations throughout. Pages and binding are presentable with no major defects. Minor issues present such as inscriptions, mild tanning and mild crinkling. Boards have mild edge wear with light rubbing and crushing. Some light marking and tanning. Lettering is darkened. There is bumping to corners.