I will keep this post on top for a little while, to alert readers that there is a new way to explore some of the archives. In the “pages” section of the sidebar at your right, I am grouping several multi-part series, and some posts that were not serial, but together make up a coherent narrative. There are a few new pictures, and some of the entries are clarified and expanded. Please visit the “pages,” especially if you have not closely followed my “posts” over the past two years.