Describes the development, testing, and performance of a laser-induced fluorescence soil probe. This monograph provides comprehensive reference material for researchers and engineers as well as engineering consultants interested in subsurface monitoring techniques or further development of this technology. "...easily the best and most up-to-date book this reviewer has read on the subject... Given the reasonable price for this book, the quality and quantity of information contained, and its timeliness, it is highly recommended."-Choice