No – that’s not mid sentence. That’s the end of the chapter!
I’ve tried to avoid getting hooked into too much punctuation and have begun here to carry it to a more extreme position by avoiding substantially completely the use of full stops.
Of course, where a single point is made up of two separate sentences, I have to stop at the end of the first sentence and then start the second.
But, if you look at the remainder of the notes, they are substantially punctuation-less