"Hence arises what we call the <i>apropos</i> of discourse: hence the connection of writing: and hence that thread, or chain of thought, which a man naturally supports even in the loosest reverie."
An Abstract of a Book lately Published, Entitled, A Treatise of Human Nature, &c.
Only 1 entry in ESTC (1740).<br>
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<u>An Abstract of a Book Lately Published; Entituled, a Treatise of Human Nature, &c. Wherein the Chief Argument of That Book Is Farther Illustrated and Explained.</u> (London: Printed for C. Borbet [sic], at Addison's Head, over-against St. Dunstan's church, in Fleet-street, 1740).&lt;<a href="http://estc.bl.uk/N14912">Link to ESTC</a>&gt;<br>
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Reading Hume's <u>A Treatise of Human Nature</u> ed. David Fate Norton and Mary J. Norton (Oxford and New York: Oxford University Press, 2000).