""Old Stones: Notes Of Lectures On The Plutonic, Silurian, And Devonian Rocks In The Neighborhood Of Malvern"" is a book written by William Samuel Symonds and first published in 1855. The book is a collection of lectures given by Symonds on the geological formations found in the Malvern Hills region of England. The lectures cover the three main types of rocks found in the area: plutonic, silurian, and devonian. Symonds provides detailed descriptions...