In a brief discussion of the Vespasian Psalter in 1898, Albert S. Cook offered a statement that set the tone for subsequent debate about the relationship between the Old English gloss of the Vespasian Psalter (A = London, British Library, Cotton Vespasian A. i) and that of the junius Psalter (B = Oxford, Bodleian Library, junius 27): ‘It seems not improbable that it [i.e. the gloss to the Vespasian Psalter] is the original from which all later Old English glosses on the Psalms have been derived, undergoing in the process such modifications as were due to the language of the particular dialect or epoch.’ With regard to the Junius gloss specifically, Cook printed the text of Psalm XCIX [C] from the Vespasian Psalter, which he collated with the Junius, Cambridge (C = Cambridge, University Library, Ff. 1.23), Regius (D = London, British Library, Royal 2. B.V), and Eadwine (E = Cambridge, Trinity College R. 17.1) psalters; he concluded that ‘B stands nearest to A, but is carelessly written, and changes Anglian peculiarities in the direction of West Saxon (in to on, all to eall, &c.) while retaining, in general, a comparatively early and Anglian cast (weotað, scep, leswe, &c.)’. Although Otto Heinzel, writing in 1926, disagreed with Cook's assertion that the Vespasian gloss was the source from which all other psalters ultimately derived their glosses, he reiterated, after a fashion, the idea that the Junius gloss is related to that of the Vespasian Psalter, although, like Cook, he did not argue for a direct relationship between these two works. In Heinzel's stemma, from the Urtext*0 derive *α, which stands as the model for B, and *β, which in turn stands as the model for both A and C. The stemma, in its full form, taking the Dtype (Regius Psalter) tradition into account, has justly been termed ‘fanciful’ by Kenneth Sisam. The relationship between the glosses in these two psalters formed the subject of an extended study by Uno Lindelöf published in 1901.