Repair-O-Matic Guide

West Nyack, N.J.:  Parker Publishing Company, Inc., 1977.

The Repair-O-Matic feature delighted me!  Basically, a diagnostic decision tree.  The author, below, when the book was first published.

Below, now, as Professor of Geology at North Carolina State University, Department of Marine, Earth, and Atmospheric Sciences.  From his university webpage:

My research involves exploring the compositional characteristics of igneous rocks, largely basaltic and gabbroic, ultramafic rocks from the mantle, and the minerals comprising all these rock types. The analytical instrumentation that I use in the Department are x-ray fluorescence spectrometry for major- and trace-elements of rocks, and electron microprobe for mineral compositions.