The _Bacularius_ is then, one may assume, led out of the church, with the _Conductus ad Poculum_, which begins, ‘Kalendas Ianuarias solemnes, Christe, facias, et nos ad tuas nuptias vocatus rex suscipias.’ The manuscript ends, so far as the Feast of the Circumcision is concerned, with some _Versus ad Prandium_, to be sung in the refectory, taken from a hymn of Prudentius[1007]. The Sens _Missel des Fous_ has been described again and again. Less well known, however, is the very similar _Officium_ of Beauvais, and for the simple reason that although recent writers on the Feast of Fools have been aware of its existence, they have not been aware of its _habitat_. I have been fortunate enough to find it in the British Museum, and only regret that I am not sufficiently acquainted with textual and musical palaeography to print it _in extenso_ as an appendix to this chapter[1008]. The date of the manuscript is probably 1227-34[1009]. Like that of Sens it contains the _Propria_ for the Feast of the Circumcision from Vespers to Vespers. Unluckily, there is a lacuna of several pages in the middle[1010]. The office resembles that of Sens in general character, but is much longer. There are two lines of opening rubric, of which all that remains legible is ... _medio stantes incipit cantor_. Then comes the quatrain _Lux hodie_ similarly used at Sens, but with the notable variant of _praesentia festa_ for _asinaria festa_. Then, under the rubric, also barely legible, _Conductus, quando asinus adducitur_[1011], comes the ‘Prose of the Ass.’ At the end of Lauds is the following rubric: _Postea omnes eant ante ianuas ecclesiae clausas. Et quatuor stent foris tenentes singli urnas vino plenas cum cyfis vitreis. Quorum unus canonicus incipiat_ Kalendas Ianuarias. _Tunc aperiantur ianuae._ Here comes the lacuna in the manuscript, which begins again in the Mass. Shortly before the prayer for the pope is a rubric _Quod dicitur, ubi apponatur baculus_, which appears to be a direction for a ceremony not fully described in the _Officium_. The ‘Prose of the Ass’ occurs a second time as the _Conductus Subdiaconi ad Epistolam_, and on this occasion the musical accompaniment is harmonized in three parts[1012]. I can find nothing about a _Bacularius_ at second Vespers, but the office ends with a series of _conductus_ and hymns, some of which are also harmonized in parts. The _Officium_ is followed in the manuscript by a Latin cloister play of _Daniel_[1013]. An earlier manuscript than that just described was formerly preserved in the Beauvais cathedral library. It dated from 1160-80[1014]. It was known to Pierre Louvet, the seventeenth-century historian of Beauvais[1015], and apparently to Dom Grenier, who died in 1789[1016]. According to Grenier’s account it must have closely resembled that in the British Museum.