we have already said, he wished by this to distinguish"
&c., &c.

This passage refers to the Antiphoner of the Office.

(_fol._ 9-10.) "That is why Gregory, the author of our office, has
placed Septuagesima.... However, Gregory the institutor of our
office...."

It is a question of the Antiphoner and of the Sacramentary.

(_fol._ 39.) "The author of our office, who is none other than
Gregory...."

He is referring to a portion of the Antiphoner of the Mass.

In the following passage Amalarius distinguishes the work of the two
first Gregories as to the Thursdays in Lent.

(_fol._ 102.) "The Holy Pope Gregory in arranging the offices of the
year had left vacant the Thursdays of Lent.... A long time after him
another Pope, Gregory the younger, ordained that these days should also
be celebrated by Masses and Prayers, but with less solemnity, and he
borrowed wherever he could material to form the offices of these
Thursdays."

VIII.--Pope Adrian I. (772-795). A MS. from Saint Martial de Limoges
contains this passage (_Paris, Bibl. Nat., No._ 2400.) "Adrian II.,
after the example of his predecessor of the same name, completed the
Gregorian Antiphoner in several places. He also arranged a second
prologue in hexameter verse to be chanted at High Mass on the first day
of Advent. This prologue begins in the same way as another very short
one composed by the first Adrian to be sung at all the Masses of this
first Sunday in Advent, but that of Adrian II. is composed of a greater
number of verses."

We have seen the passage in which Walafrid Strabo speaks of the
inscription at the beginning of the Antiphoner, ascribing its origin to
Gregory I., and again that in which Agobard of Lyons tells us that the
inscription contained the words "Gregorius Praesul." There are five forms
extant of the prologue in hexameter verse. The shortest, and therefore
the one probably composed by Adrian I., is as follows:--

"Gregorius Praesul meritis et nomine dignus
Unde genus ducit, summum ascendit honorem.
Renovavit monumenta patrum priorum: tunc
Composuit hunc libellum musicae artis
Scholae cantorum anni circuli: Ad te levavi."

All the five forms begin with the same two first lines. Eckhart got
over the difficulty caused to his theory by these lines by supposing
that "Gregorius Praesul" meant not Gregory the Great, but Gregory II.
But he does not explain