“Ethnology,” he asserts, “multiplies the actors in its drama [that of history], and takes _the keystone from the arch of the church theology by disproving the inheritance of total depravity from one progenitor of all men_.”[32] Here the author shares the error in common with almost all, if not all, Unitarians and free-religionists. They seem not to be able to grasp the idea that the Catholic Church, in the œcumenical Council of Trent, condemned the doctrines of Protestantism concerning original sin; and, whatever may be said to the contrary, the Catholic Church never goes back on her authoritative decisions. Mr. Alger well says that the doctrine of original sin is “the keystone of the arch of theology”; so much the more reason, therefore, that there should be no mistake on a point which shapes theology almost entirely. And if he and his brethren, free-religionists and Unitarians, could be got to understand and acknowledge that the Catholic Church has condemned the doctrines of Protestantism on original sin, as well as “the five points of Calvinism”—for they go together—then there would be some hope that the gross error of identifying Catholicity and Protestantism as “fundamentally and essentially the same” on this most important subject would be corrected. The error is an egregious one, which is constantly appearing in their addresses, sermons, tracts, essays, books, weekly papers, and journals, and with that error a thousand dependent errors would disappear. But, alas! we fear that we shall have to regard this as hopeless, and resign ourselves, for the present generation at least, to placing this, with other radical errors, among the points of “invincible ignorance”! May we just here be allowed, without being stigmatized as one of the “meaner portion” of the priesthood, to put in a humble demurrer to the unsustained assertion that “ethnology” has “disproven” “one progenitor of all men”?