J.S. Sumner. 1976. Vintage library book with a few stamps and checkout pocket. Minimal wear. Great condition.  

"A direct means of indicating the presence of concealed mineralization would be the ultimate in exploration. in many ways the Induced-polarization technique comes close to achieving this goal... The object of this book is to review Induced polarization phenomena, measuring equipment and  techniques, and to describe the interpretation of results under a variety of geologic environments and operation conditions."