Second edition. By G.C. Dickinson, 1979. Halsted Press, A Division of John Wiley aamp; Sons, One Wiley Drive, Somerset, NJ 08873. ... developing skill in identifying rocks and minerals in hand specimen without the use of elaborate laboratory equipment. ... Tijuana is included, along with a field trip guide to the geology of Northern Baja Califor- ROCKHOUNDING IN BAJA. ... reference on how the San Francisco Bay system M \ functions biologically, chemically, geologically, and physically.