part, after the way
mentioned above (A. 5), whereby something can be generated from those
species. And if they be entirely corrupted, there remains no further
question, because the whole will be uniform. But if they be corrupted
in part, there will be one dimension according to the continuity of
quantity, but not one according to the mode of being, because one
part thereof will be without a subject while the other is in a
subject; as in a body that is made up of two metals, there will be
one body quantitatively, but not one as to the species of the matter.

Reply Obj. 3: As Pope Innocent says in the aforesaid Decretal, "if
after the consecration other wine be put in the chalice, it is not
changed into the blood, nor is it mingled with the blood, but, mixed
with the accidents of the previous wine, it is diffused throughout
the body which underlies them, yet without wetting what surrounds
it." Now this is to be understood when there is not sufficient mixing
of extraneous liquid to cause the blood of Christ to cease to be
under the whole; because a thing is said to be "diffused throughout,"
not because it touches the body of Christ according to its proper
dimensions, but according to the sacramental dimensions, under which
it is contained. Now it is not the same with holy water, because the
blessing works no change in the substance of the water, as the
consecration of the wine does.

Reply Obj. 4: Some have held that however slight be the mixing of
extraneous liquid, the substance of Christ's blood ceases to be under
the whole, and for the reason given above (Obj. 4); which, however,
is not a cogent one; because "more" or "less" diversify dimensive
quantity, not as to its essence, but as to the determination of its
measure. In like manner the liquid added can be so small as on that
account to be hindered from permeating the whole, and not simply by
the dimensions; which, although they are present without a subject,
still they are opposed to another liquid, just as substance would be
if it were present, according to what was said at the beginning of
the article.
_______________________

QUESTION 78

OF THE FORM OF THIS SACRAMENT
(In Six Articles)

We must now consider the form of this sacrament; concerning which
there are six points of inquiry:

(1) What is the form of this sacrament?

(2) Whether the form for the consecration of the bread is appropriate?

(3) Whether the form for the consecration of the blood