Stone Breaker is an in-depth, accessible biography of a true American polymath, James Gates Percival. A poet, linguist, and unstable savant Percival was also a brilliant geologist who walked thousands of miles crisscrossing first Connecticut and then Wisconsin to lay the foundation for the work of generations of Earth scientists. Exploring the confluences of literature, art, and geology, Kathleen L. Housley reveals how one of most famous poets of the 1820's became a renowned geologist with his groundbreaking 1843 work Report on the Geology of the State of Connecticut. The book includes historic photographs and paintings of the Connecticut landscape. Publication of this book is funded by the Beatrice Fox Auerbach Foundation Fund at the Hartford Foundation for Public Giving.