^{page 21 note 1} Strong, C. A., Essays on the Natural Origin of the Mind (London: Macmillan & Co., 1930), p. 30.Google Scholar

^{page 21 note 2} Ibid., pp. 38 f.

^{page 22 note 1} Ibid., p. 33.

^{page 22 note 2} Jaensch, E. R., Eidetic Imagery, trans. Oscar, Oeser (London: Kegan Paul, 1930), pp. 15 f.Google Scholar Throughout the essay, italics in quotations stand for emphases in the texts quoted.

^{page 23 note 1} I have examined the problem in detail in a paper, ‘The Sociology of Perception’, Journal of Genetic Psychology, 1950, 77, 293–303.

^{page 24 note 1} Feuerbach, Ludwig, The Essence of Christianity, trans. Evans, Marian, chap. I, sec. 2 (German text, chap. II), para. 4.CrossRefGoogle Scholar

^{page 24 note 2} Ibid., next to last para.

^{page 24 note 3} Ibid., Evans XXI (German XXII), para. 5.

^{page 24 note 4} Marx/Engels Gesamtausgabe, Abt. I, Bd. 5 (Berlin: Marx-Engels Verlag, 1932), 535.Google Scholar

^{page 25 note 1} Friedrich Engels, Herrn Eugen Dührings Umwälzung in der Wissenschast, part III, chap. V, para. 5.

^{page 25 note 2} The Future of an Illusion, trans. Robson-Scott, W. D., rev., Standard Edition of the Complete Psychological Works of Sigmund Freud, XXI (London: Hogarth Press, 1961), 17 f.Google Scholar

^{page 25 note 3} Totem and Taboo, trans. Strachey, James, Standard Edition, XIII (London: Hogarth Press, 1955), 141–148.Google Scholar

^{page 26 note 1} Dewey, John, A Common Faith (New Haven: Yale University Press, 1934), pp. 43 f.Google Scholar

^{page 26 note 2} Ibid., pp. 49–51.

^{page 28 note 1} de Unamuno, Miguel, The Tragic Sense of Life in Men and in Peoples, trans. Flitch, J. E. Crawford (London: Macmillan & Co., 1921), p. 4.Google Scholar

^{page 28 note 2} Ibid., p. 162.

^{page 28 note 3} Ibid., pp. 167 f.

^{page 29 note 1} Ibid., pp. 166 f.

^{page 29 note 2} Ibid., p. 177.

^{page 30 note 1} Ibid., p. 157.

^{page 30 note 2} Ibid., p. 168.

^{page 30 note 3} Hume, David, A Treatise of Human Nature, ed. Selby-Bigge, (Oxford: Clarendon Press, 1888), p. 167.Google Scholar

^{page 31 note 1} Ibid., p. 235.

^{page 31 note 1} Ibid., p. 236.

^{page 32 note 1} Ibid., pp. 237 f.

^{page 33 note 1} , Hume, Essays Moral, Political, and Literary, ed. Green, and Grose, (2 vols.; London: Longmans, Green & Co., 1875), I, 268.Google Scholar

^{page 33 note 2} Santayana, George, The Sense of Beauty (New York: Charles Scribner's Sons, 1896), pp. 234 f.CrossRefGoogle Scholar

^{page 34 note 1} Ibid., pp. 239 f.

^{page 34 note 2} Ibid., p. 49.

^{page 34 note 3} Ibid., pp. 44–47.

^{page 34 note 4} Ibid., pp. 48 f. and 197.

^{page 35 note 1} Alexander, S., Beauty and Other Forms of Value (London: Macmillan & Co., 1933), pp. 182 f.Google Scholar