this is a book of Jacob rod
Translation of a 1693 French work on the use of the dowsing or hazel rod for finding water and minerals. The discussion covers the quality of the rod, the form of the rod, how to hold it and how it turns, how do distinguish hidden things, how to determine the width of springs and mines, how to know the depth of water or minerals, and other explanations
download this book here :
https://archive.org/details/b24884194