352 Wisconsin Academy of Sciences , Arts, and Letters. 
deinde 1 incipm^r mtssa: Domimis dixit ad me, films.. 
qua dicta, sTATim mcipiatun A^tiphona: 
Pastores, dicite, quidnam uidistis, et adnunciate X.'pisti 
natiuitatem. 
r esponsio: 
Infantem uid firms pannis inuolutum, et chores angelorum 
laudantes 2 Saluatorem. 
postea incipitur: Te Deum laudamns. 3 
A similar text, with interesting rubrics, is shown in the follow¬ 
ing: 
4 non dicitue: Ite, missa est . 4 si missa celebbatue cum 
-CANTU, NE POPELES LICEN CIATUM SE CREDENS, NON AUDITO 
MAT utinO , DISCEDAT, DICITUE A DIACHOEO : 
Pastores, dicite, quidnam uidistis, et annunciate Xpis/i 
natinitatem, et cetera, 
chorus respondeat : 
Infantem nidi <18 v > mns pannis inuolutum, et chores 
angelo-rwm laudantes Saluatorem, ut habetue in breviariis. 
dicitue Te Deum laudamus. 5 
Most conspicuous of all, however, is the use of this dialogue 
in connection with the psalmody of Lauds, where it served a 
variety of uses. This variety we shall understand better, no 
doubt, after a glance at the liturgical structure of Lauds. 
As the name suggests, the office consists chiefly in the sing¬ 
ing of psalms of praise, of which there are five, 6 each being 
provided with an antiphon to he sung before it and to he re- 
1 Preceded immediately by the Liber Generations. 
2 MS laudentes. 
s Bibl. Nat. MS. lat. 1033, Breviarium Pictaviense saec. xiv, fol. 26r, 
44 Marking the end of the first Christmas Mass. 
8 Paris, Bibl. Mazarine, MS. 420 ( olim 216), Missale Pictaviense 
saec. xiv, fol. 18r-18v Cf. Bibl. Nat., MS. lat. 1057, Breviarium Pic- 
laviense saec. xiv, fol. 2SK See also Cousseau, Memoire sur V an- 
cienne liturgie du diocese de Poitiers et sur les monuments qui nous 
en restent, in Memories de la Societe des Antiquaires de V Quest I e 
Serie, t. V (1839, pp. 222-223; Du Meril, p. 148. 
‘That is to say, five liturgical psalms. As we shall see below, the 
liturgical psalm often comprises two or more scriptural psalms. 
