[AB] These allowances may well be made for Professor Clifford, one of the most extravagant assailants of religious faith.
[AC] Professor Tait in answer to Mr. Froude has advanced the evidence. International Review, Nov. 1878, vol. v. No. 6. The collected papers have been republished, Atlas Series, No. 11.
[AD] Recent Advances in Physical Science, by P. G. Tait, Professor of Natural Philosophy, University of Edinburgh, p. 17.
[AE] Ib. p. 2.
[AF] Recent Advances in Physical Science, p. 14.
[AG] See [Appendix III.]
[AH] The Conservation of Energy, by Balfour Stewart, p. 26.
[AI] The Conservation of Energy, p. 36.
[AJ] Recent Advances of Physical Science, p. 17.
[AK] Tait's Recent Advances, p. 15.