To navigate through this module, use the buttons at the top (to choose a book), on the left (to choose a part or chapter) and at the bottom (to go to the next or previous chapter within a part), and of course your browser’s back and forward arrows (to return to previously seen web pages). You can also use the General Sitemap.
 Note: to read a footnote signaled in the text, click on the identifying number and you will be taken to it; to return where you were in the text click on the same number adjacent the footnote, and you will be transported back there.
If you are looking for a specific term or phrase anywhere in this website, use the Search facility. To look for words through the web page you are on, use the Edit / Find facility in your browser.