* 90 hikes, many off the beaten path
* Appendices list hikes by rock age, collectible minerals or fossils present, and more; plus a new illustrated section on rock identification

Visit tropical islands sequestered in the Wallowa Mountains, ancient volcanoes in the depths of Hells Canyon, and Cascade valleys carved by glaciers towering far above your head. All it takes is a little imagination (yours) and geologic savvy (provided by a professional). Aided by photos and illustrations, unlock the mysteries of the landscape through which you walk.

Professional guidebook writer,...

Here is both a textbook for beginners and a handbook for specialists in plasma physics and gaseous electronics. The book contains much useful data: results of experiments and calculations, and reference data. It provides estimates of typical parameters and formulas in forms suitable for computations. Gas discharges of all important types are discussed: breakdown, glow, arc, spark and corona at radio frequency, microwave and optical frequences. The generation of plasma, and its application to high power gas lasers are treated in detail.