A day of school prep - making sure I have all 15 lectures...

A day of school prep - making sure I have all 15 lectures for both classes where I can find them, putting together visual charts of such  concepts as the fact that World History - at least before 1500 - consists of small states being fused together into larger empires and then falling apart again in pretty much the same pattern.

And meditating on what happens next in Washington in 1838, and in that new fantasy world that at the moment I'm seeing in terms of medieval (rather than Renaissance) Italy... I always ask myself, Is there glass in the windows?

I have a question about mathematical magic-squares, if there's anyone out there who plays games with mathematics. Answers will, of course, receive credit in the front of the book... And by the way, there's a list of Thank You's in the front of Magistrates of Hell, for all the asssitance with Latin and Chinese.

Any takers for math?