Janet's a silly body, but she means no ill, and her mother is demented at the loss of her.

Has Wilkie become thus demented in compliment to Turner, the Prince of Orange (colour) of artists?

He was on one of these foraging expeditions when Joe discovered himemaciated, dirty, and half demented through terror of the gallows.

I visited the Schatz Kammer, the treasure-room, and saw men go almost demented at the spectacle of the gold and jewels heaped up in the cases.

and I are almost demented on the subject.

Naturally I appear demented to those who will not believe this, naturally I do not know the names of my secretaries, of the doctors who come to see me, of my servants and neighbours, of this town (wherever it is) where I find myself.