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Octavo Size [approx 15.5 x 22.8cm]. Very Good condition in Very Good Dustjacket. DJ protected in purpose-made plastic sleeve. A nice copy. Dustjacket has faded spine. Black & white drawings, maps and figures. xii, 136 pages The authors present a model which aims to predict earthquakes by hitherto unrecognised and apparently unrelated phenomena of planetary alignments, sun spot and solar wind activity.