Reston VA / Seattle: US Geological Survey / University of Washington Press, 2005. Paperback. vii, 133p., clay-coated alkaline paperstock with profuse vignette and fullpage illustrations in color and b&w, including color reproductions of renaissance-era maps. Softbound in 11x8.5 inch decorated wraps, slight external edgewear, entirely clean, sound and unmarked, a very good copy. Tree rings a major clue, applied logic and oral history also.