1964. First Edition Thus. 302 pages. No dust jacket. Brown cloth boards with gilt lettering to spine. Black and white illustrations and illustrative plates by E.L. Sisley. Foreword by Clark H. Millikan. Pages and binding are presentable with no major defects. Minor issues present such as inscriptions, mild crinkling and light tanning. Boards have mild edge wear with light rubbing and crushing. Some light marking and tanning. Gilt lettering is bright and clear. Book has a slight forward lean. Small stains at spine and front joint.