Since prehistoric times, the process of cutting rock to make millstones has been one of the most important industries in the world. The first part of this book

Elder Carson works in Olinda, an ancient city on the northeastern coast of Brazil. It is lush green, full of old churches and white-sand beaches and drug traffi

In the early nineteenth century, mills were ubiquitous, making possible dozens of indispensable items--from the bread served at every meal to the boards used to