""Geological Sketches, And Glimpses Of The Ancient Earth"" is a book written by Maria Hack in 1839. It is a collection of essays that explore the geological history of the Earth, focusing on the physical characteristics of the planet and the changes it has undergone over time. The book covers a wide range of topics, including the formation of mountains, the effects of erosion and weathering, and the evolution of plant and animal life. Hack draws on...