John Murray (1778 1820) was a public lecturer and writer on chemistry and geology. After attending the University of Edinburgh he became a popular public lecturer on chemistry and pharmacy. He was also a prolific writer of chemistry textbooks which were widely used in British universities. This popular volume, first published anonymously in 1802, contains Murray's critical response to John Playfair's volume Illustrations of the Huttonian Theory of the Earth, also published in 1802 and re-issued in this series. In this volume Murray clearly describes both the competing Huttonian and Neptunian...