Sentence:  Stream fishing is, as I have said, subdivided into fishing with a travelling or tripping bait, with or without a float, and also with a stationary one, with or without float. The first of these latter is termed "tight corking," and the latter ledgering or <WSD>ledger</WSD> fishing. ... If the angler likes it better, a combination of <WSD>ledger</WSD> and float can be made, which is the "acmè" of tight corking and one of the most killing methods employed. It is simply to use a light <WSD>ledger</WSD> lead instead of fixed shots. 
Meaning of the word marked with <WSD> tags:  (nodot=yes) or '''ledger line''' (“fishing line used with ledger bait for bottom fishing; ligger”).