sounding line

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Related to sounding lines: sounding lead

sounding line

[′sau̇nd·iŋ ‚līn]
(engineering)
The line attached to a sounding lead. Also known as lead line.
References in classic literature ?
'46, with compass and chain and sounding line. There have been many stories told about the bottom, or rather no bottom, of this pond, which certainly had no foundation for themselves.
Then they seemed so familiar with French names and French authors: but my amazement reached its climax when Miss Temple asked Helen if she sometimes snatched a moment to recall the Latin her father had taught her, and taking a book from a shelf, bade her read and construe a page of Virgil; and Helen obeyed, my organ of veneration expanding at every sounding line. She had scarcely finished ere the bell announced bedtime!