Wordorigins.org

Isil, O. A. (1996). When a loose cannon flogs a dead horse there’s the devil to pay: seafaring words in everyday speech. Camden, Me., International Marine.

A popular press book specializing in the origins of nautical terms and phrases. While it contains an impressive bibliography, Isil rarely gives sources for the individual etymologies she presents. Also, some of the nautical connections are rather tenuous (e.g., her explanations of sloppy and running the gauntlet are not particularly nautical) and, worst of all, she often includes apocryphal or speculative origins without clearly labeling them so.