Hardback with dust jacket, 124 pages with charts and diagrams. According to the fly leaf, this is Volume 131 under section XIII and the 107 volume in order of publication; it does contain the Nihil Obstat and Imprimatur. Book is good: two pages are still attached but protrude, previous owner's rubber stamp on front end paper; text itself is clean with no marks or writing. Dust jacket is good: faded spine, rubbing and abrasions, a few very short closed tears; wear to extremities. 12175

, Christian