Online notes from physics professor of 50 years

An emeritus professor in my department needed help setting up a printer last week. He told me he comes in to maintain his notes as he doesn't have internet at home. Started teaching in '69 and just retired.

Anyways, seemed like he has a gem of a website the type of which HN likes. He has a fondness for Lewis Carol which sometimes comes through in the notes. Also I couldn't help but to try to game his hit counter on the home page as I thought it might make him happy.