That's an important development, preparing herself for possible imperfections in the two fabulous Tilneys in future. Perhaps it'll happen when she sees Henry side by side with the viscount, who is to a precision the most charming young man in the world, we're reliably informed.

She's holding on to some odd attitudes toward the Swiss, Italians, southern French, Scots, Welsh, and Cornish, though. (I assume that the northern and western extremities in chapter 25 are of Britain.)