Sentence:  So deep did they go; and so ancient, and corroded, and weedy the aspect of the lowermost puncheons, that you almost looked next for some mouldy corner-stone cask containing coins of Captain Noah, with copies of the posted placards, vainly warning the <WSD>infatuated</WSD> old world from the flood. 
Meaning of the word marked with <WSD> tags:  Foolish, stupid, lacking good judgement (often as a result of some external influence).