Sentence:  [W]hen fishing for Eels with a <WSD>ledger line</WSD> as well as a floated line, don't be in too much haste to strike when you see a bite, for Eels generally gorge the bait, and consequently hook themselves, if you give them time, ... I always use two hooks on my ledger, placing the top one about two feet above the bottom, and to prevent it from moving from its proper place, fix a shot above it and below it, ... 
Meaning of the word marked with <WSD> tags:  A fishing line used with ledger bait for bottom fishing; a ligger.