On the divorce problem see _An Essay on Marriage; or, the Lawfulness of Divorce_ (Philadelphia, 1788), presenting the principal arguments in its favor; Westbrook, _Marriage and Divorce_ (Philadelphia, 1883); _idem_, _The Clerical Combination to Influence Civil Legislation on Marriage and Divorce_ (Philadelphia, 1887); Fisher, _The Causes of the Increase of Divorce_ (Boston, 1883); Richard, _Marriage and Divorce_ (London, 1888); Robinson, "The Diagnostics of Divorce," in _Jour. of Soc. Science_, No. 14 (Boston and New York, 1881); Janes, "Divorce: Sociologically Considered," in _New Englander and Yale Review_, LIV (New Haven, 1891); Phillips, "The Divorce Question," in _International Review_, XI (New York, 1881); Savage, "Matrimony and the State," in _Forum_, X (New York, 1890); Adler, "The Ethics of Divorce," in _Ethical Record_, II, III (Philadelphia, 1889-90); Wright, "Marriage and Divorce," in _Christian Register_, LXX, 655-58 (Boston, 1891); Lecky, _Democracy and Liberty_, I, chap. vii (New York and London, 1896); and Bryce, "Marriage and Divorce," in his _Studies in Hist. and Jur._ (New York and London, 1901). The following are very conservative: David Hume, "Of Polygamy and Divorces," in his _Essays_, I (London, 1875); Little, "Marriage and Divorce: the Doctrine of the Church of England," in _Contemporary Review_, LXVIII (London, 1895); Hurd, "Scriptural Ground of Divorce," in the _New Englander and Yale Review_, XLV (New Haven, 1886); Phelps, "Divorce in the United States," in _Forum_, VIII (New York, 1889); Caverno, _Treatise on Divorce_ (Madison, 1899); Gladstone, symposium with Bradley and Dolph on "The Question of Divorce," in _North Am. Review_, CXLIX (New York, 1889); Greeley, "Marriage and Divorce: a Discussion with Robert Dale Owen," in _Recollections of a Busy Life_, 571 ff. (New York, 1869); _idem_, _Love, Marriage, and Divorce, and the Sovereignty of the Individual_ (New York, 1853), a discussion with James and Andrews; Convers, _Marriage and Divorce_ (Philadelphia, 1889), presenting the Catholic view; Dike, "Some Aspects of the Divorce Question," in _Princeton Review_, N. S., XIII (New York, 1884); and Woolsey, _Divorce and Divorce Legislation_ (2d ed., New York, 1882).