Petrifactions And Their Teachings: Or A Hand-Book To The Gallery Of Organic Remains Of The British Museum (1851) is a book written by Gideon Algernon Mantell. The book is a comprehensive guide to the collection of organic remains at the British Museum, focusing on petrifactions, or fossils. Mantell provides detailed descriptions of the various types of fossils found in the collection, including plants, animals, and shells, and discusses their significance...