Illustrated cloth boards with no DJ as issued. 182 illustrated pages. Very light shelfwear to edges and boards. Some underlining in first 4 chapters. NOT an ex-library book. Pages tight and still glossy. pages. HardCover Binding. Year: 1968. ISBN: 0801626293. ""Sponsered by the American Committee on Optics and Visual Physiology and the USPHS Neurological and Sensory Disease Service Program.""