Robert C. Adams in in his book "On Board The 'Rocket'", 1879. In a section titled "Sailors' Songs", he comments: "In addition to these songs are the unnamable and unearthly howls and yells that characterize the true sailor, which are only acquired by years of sea service. There is the continuous running solo of "way-hey he, ho, ya," &c. accompanying the hand-over-hand hoisting of jibs and staysails. Then for short "swiggs" at the halyards, we have such utterances as "hey lee, ho lip, or yu," the emphasis and pull coming on the italicized syllables on which the voice is raised a tone. Then comes the more measured "singing out," for the long and regular pulls at the "braces." Each sailor has his own "howl" peculiar to himself, but fortunately only one performs at a time on the same rope."