Catholic apologist Dave Armstrong has compiled his writing on the Eucharist & the Sacrifice of the Mass into a Scripture-packed 23 chapters and 222 pages. Among the topics covered are: 1) the special presence of God in physical objects in the OT, 2) comparison of the indwelling & the Real Presence, 3) doubting disciples in the eucharistic discourse of John 6, 4) exclusion of non-Catholics from Catholic communion, 5) St. Augustine's & John Calvin's...