We have now to consider the matter of this sacrament: and first of all as to its species; secondly, the change of the bread and wine into the body of Christ; thirdly, the manner in which Christ's body exists in this sacrament; fourthly, the accidents of bread and wine which continue in this sacrament.

Under the first heading there are eight points for inquiry:

A[1] Whether bread and wine are the matter of this sacrament?

A[2] Whether a determinate quantity of the same is required for the matter of this sacrament?

A[3] Whether the matter of this sacrament is wheaten bread?

A[4] Whether it is unleavened or fermented bread?

A[5] Whether the matter of this sacrament is wine from the grape?

A[6] Whether water should be mixed with it?

A[7] Whether water is of necessity for this sacrament?

A[8] Of the quantity of the water added.