[16] "Essays," vol. i. p. 40.
[17] "A Modern Symposium."—Nineteenth Century, vol. i. p. 625.
[18] Beck: "Bib. Psychol.," Clark's Tr., Pref., 2d Ed., p. xiii.
[19] "First Principles," p. 161.
[20] Wordsworth's Excursion, Book iv.
[21] "The Correlation of Physical Forces," 6th Ed., p. 181 et seq.
[22] "Unseen Universe," 6th Ed., p. 88.
[23] "Old Faiths in New Light," by Newman Smith. Unwin's English edition, p. 252.
[24] The Duke of Argyll: Contemporary Review, Sept., 1880, p. 358.
[25] "Poetic Interpretation of Nature," p. 115.