Sentence:  ... <WSD>Incoherences</WSD> in Matter and Suppositions, without Proofs put handsomly together in good Words and a plausible Stile, are apt to pass for strong Reason and good Sense, till they come to be look'd into with Attention. 
Meaning of the word marked with <WSD> tags:  Something incoherent; something that does not make logical sense or is not logically connected.