““St. Thomas, following his master Albert, proves the necessity of a right intention on the part of the minister from the proposition that every free instru mental cause must voluntarily accommodate itself to the principal cause,— in this case Christ, the author and chief administrator of the Sacraments. " There is required on the part of the minister that intention by which he subjects himself to the principal agent, i. e. intends to do what Christ does and the Church.””