 The Works Of John Playfair V1 (1822) by John Playfair, 20100217
 The Works of John Playfair ...: Dissertation, Exhibiting a General View of the Progress of Mathematical and Physical Science Since the Revival of Letters in Europe by John Playfair, 20100305
 The Works Of John Playfair V4: With A Memoir Of The Author by John Playfair, 20070725
 The Works of John Playfair ...: With a Memoir of the Author, Volume 3 by John Playfair, James George Playfair, 20100310
 The Works of John Playfair ...: On the Arithemetic of Impossible Quantities. On the Causes Which Affect the Accuracy of Barometrical Measurements. Remarks ... of Porisms. Observations On the Tr by John Playfair, 20100216
 The Works of John Playfair ...: With a Memoir of the Author, Volume 2 by John Playfair, 20100110
 The Works of John Playfair ...: Biographical Account of Matthew Stewart. Biographical Account of James Hutton. Biographical Account of John Robinson. Review ... Review of Mechain Et Delambre, Base D by John Playfair, 20100303
 The Works of John Playfair ...: Biographical Memoir. Illustrations of the Huttonian Theory of the Earth by John Playfair, 20100305
 The Works of John Playfair ... (v. 1) by John Playfair, 20090818
 Explication De Playfair Sur La Théorie De La Terre Par Hutton, Et Examen Comparatif Des Systèmes Géologiques, Volumes 12 (French Edition) by John Playfair, 20100204
 A Handbook for Travellers in Algeria (And Tunis) [By Sir R.L. Playfair by John Murray, Robert Lambert Playfair, 20100223
 Explication De Playfair Sur La Théorie De La Terre Par Hutton, Et Examen Comparatif Des Systèmes Géologiques (French Edition) by John Playfair, 20100203
 Elements of Geometry: Being Chiefly a Selection from Playfair's Geometry by John Playfair, 20100111
 A Comparative View Of The Huttonian And Neptunian Systems Of Geology by John Murray, 20100910
