436 Proceedings of the Royal Irish Academy. 



though in abnost all eases evidently derived from the series common to o and 

 B, are often corrupt. L'PTZ have none. F has one (Ps. xliv, corrupt), H twa 

 (Pss. xlv, xlvii), of which one is corrupt 'Ps. xlv), L- one (Ps. xxvi, corrupt), 

 Q four (Pss. xliv, xlv, xlvii, xlix, all more or less corrupt), S eleven* (Pss. ii, 

 i, viii, X, xi, xii, xxxvi, xxxrx, xliv, xlviii, xc), of which four are corrupt (vi,. 

 xxxvi, xliv, xc). K seems to have been more fully furnished with lectionary 

 notes than most other Mss. I have been able to record three (Pss. Ixxviii, xc, 

 cv), two of which are corrupt (Pss. Ixxviii, xc). These facts corroborate 

 conclusions already reached. They show how readily the lectionary notes 

 were omitted, or misimderstood and corrupted, by later scribes. They bring- 

 into prominence the very close connexion which subsists between C, 

 the archetype of AE (a), and the primary source of B (/3). They supply 

 a strong argument for the early date of those three authorities. And, taken 

 with the facts set forth in Table I, they justify the procedure, which was- 

 adopted in the Introduction, of considering o/3C apart, and deducing from 

 a comparison of their readings the exact nature of their relation to each 

 other. 



There is some ground for believing that the headings and the liturgical 

 notes are not descended from a common original (see above, p. 267). But if, 

 on the authority of M, we conclude that the headings came from Italy, 

 that must hold good of the lectionary notes also ; for M has two of them 

 (Pss. Ixviii, Ixxxiii). It would follow that the direction to the scribe 

 embodied in the rubric of Ps. ii in AE (above, p. 267, was derived from an 

 Italian MS. — the first which combined headings and notes in a single series. 



* All of which, except xliv, xlviii, and xc, and perhaps ii, come from B"3 second source. 



