This has been the best chapter yet. It is titled "Water Law Basics" and does indeed cover the basics of the riparian doctrine of water law and the prior approriation doctrine - both very important water law-isms in the West. I particularly liked the tweaks and developments of the water law suggested by the authors based on changes in mining technologies over the formative years of the law. I was disappointed when I came to the end of the chapter just as the modern times (1960's) were being introduced. But was relieved to read that they were going to be picked back up in later chapters.
While the chapter notes and references are not exhaustive, they are clearly sufficient to provide new sources of information to anyone wanting to know more. Anyway, now that I know that "usufructory" is not dirty word, it's on to chapter 4!