Sentence:  It was pitiful to <WSD>see</WSD> the thin ranks of warriors , old and young , wheeling and twisting their ponies frantically from side to side only to be tumbled bleeding from their saddles by the relentless slam , slam of the cruelly efficient Hawkinses . 
Meaning of the word marked with <WSD> tags:  perceive by sight or have the power to perceive by sight