[Let Americans read this, and ask whether a relapse into heathenism is not threatening our civilization, in this respect. May I venture to refer to Moral Reforms (ed. 1869, Lippincotts, Philadelphia), a little book of my own, rebuking this inquity, and tracing the earliest violation of this law of Christian morals, and of nature itself, to an unhappy Bishop of Rome, rebuked by Hippolytus. See vol. vi. p. 345, Edinburgh Series of Ante-Nicene Fathers.]