The Catholick doctrine of the Eucharist in all ages [electronic resource] : in answer to what H. Arnaud, Doctor of the Sorbon alledges, touching the belief of the Greek, Moscovite, Armenian, Jacobite, Nestorian, Coptic, Maronite, and other eastern churches : whereunto is added an account of the Book of the body and blood of our Lord published under the name of Bertram : in six books