Generally speaking I see the search function as the option of last choice and prefer to have the navigation of the site guide visitors through the content. This encourages the site visitors to explore what the website has to say and appreciate how the content is organized.

However this site does contain a hoard of notes and other content which isn’t of primary importance but may be of use to some people down the line. This search form is intended for finding this kind of buried treasure‚Ķ