Stanzas of cognate form are quoted in _Metrik_, ii, §§ 283-5, constructed according to the schemes: _a a₂ a₄ b₃ c c₂ c₄ b₃_, _a₃ b b₄ c ~₂ a₃ d d₄ c ~₂_ (with a varying first rhyme in the chief verses), _a a b b₄ c₂ d d e e₄ c₂_ (ten lines, with a new rhyming couplet in the half-stanza), _a a b b c₃ C₂ a a b b c₃ C₂_ (an analogous twelve-lined stanza, extended by refrain in each half-stanza), _a b a b₅ c₃ d e d e₅ c₃_ (crossed rhymes in the principal verses). Two uncommon variations that do not, strictly speaking, belong to the isocolic stanzas, correspond to the formulas _a b b₅ c₂ c d d₅ a₂_, _a b a₄ c ~₂ b a b₄ c ~₂_. § =244.= Another step in the development of the tail-rhyme stanza consisted in making the principal verses of the half-stanza shorter than the tail-verse. Models for this form existed in Low Latin, Provençal, and Old French poetry (cf. _Metrik_, i, § 366). In Middle English, however, there are not many stanzas of this form. We have an example in Dunbar's poem _Of the Ladyis Solistaris at Court_ (_a a₂ b₃ c c₂ b₃ d d₂ e₃ f f₂ e₃_): _Thir Ladyis fair, That makis repair, And in the Court ar kend, Thre dayis thair Thay will do mair, Ane mater for till end, Than thair gud men Will do in ten, For any craft thay can; So weill thay ken Quhat tyme and quhen Thair menes thay sowld mak than._ The same rhythmical structure is found in the old ballad, _The Notbrowne Maid_, in Percy's _Reliques_, vol. ii. In this collection the poem is printed in twelve-lined stanzas of four- and three-foot verses. Skeat, however, in his _Specimens of English Literature_, printed it in stanzas of six long lines. In either arrangement the relationship of the metre to the Septenary verse comes clearly out. In Modern English this stanza is also very popular. It occurs in Scott (p. 460, _a a₂ b₃ c c₂ b₃_), Burns (doubled, p. 61, _a a₂ b₃ c c₂ b₃ d d₂ e₃ f f₂ e₃_, p. 211, _a a₂ b₃ c c₂ b₃ d d₂ b₃ e e₂ b₃_). Often there are also two- and three-foot iambic-anapaestic verses combined in stanzas of this kind, as in Cowper (p. 427), Burns (p. 244), &c. Subordinate varieties of this stanza consisting of other verses are quoted, with specimens, in _Metrik_, ii, §§ 286-8, after the formulas: _a a₄ b₅ c c₄ b₅, a a₄ b₆ c c₄ b₆_, _a a₃ b₅ c c₃ b₅, a a₃ b c c b₄_, _a a₂ b₄ c c₂ b₄, a ~ a ~ b ~ b ~ c d ~ d ~ e ~ e ~₂ c₃_. § =245.= A small group of tail-rhyme stanzas consists of those in which the second chief verses are shorter than the first. Such a variety occurs in a tail-rhyme stanza of four-foot trochaic verses, the second verse of each half-stanza being shortened by two measures. It was used by Donne in his translation of Psalm 137 (_Poets_, iv, 43): _By Euphrates' flow'ry side We did 'bide, From dear Juda far absented, Tearing the air with our cries, And our eyes With their streams his stream augmented._