Alas, no proofreader is perfect (especially when you're proofreading yourself). A couple of goofs I failed to catch:
1. Turning Helen Maria Williams into "Helena." Actually, I realized that I'd done this when I caught myself making the same error at Butterflies and Wheels, but it was too late to fix the mistake. I've got no clue what I was thinking. Did I stick the "a" on at the end because "Helena" just sounds more, um, Romantic? Poetic? To make "Helen" rhyme with "Maria"? Huh?
2. For some reason, I made Mrs. Jane West publish her anti-Jacobin historical allegory The Loyalists two years too early, in 1810 instead of 1812. (Since I do talk about a couple of other things published in 1810, I suspect that there was an accidental "spill" of sorts.) A. E. Housman's chorus won't be saying "thine arithmetic is quite correct."
My colleagues also inquired about an odd omission from the acknowledgments page. You see, I failed to mention Victoria and Disraeli. And so, I here thank them for sitting on books and manuscripts, playing with pens, walking on the keyboard, standing in front of the monitor [she says, shoving a cat out of the way], and, in general, interfering with the book to the best of their ability.