APPENDIX.
I.
Relations of Science and Religion. [Page 34.]
"He who contemplates the universe from the religious point of view, must learn to see that this which we call science, is one constituent of the great whole; and as such ought to be regarded with a sentiment like that which the remainder excites. While he who contemplates the universe from the scientific point of view, must learn to see that this which we call Religion is similarly a constituent of the great whole; and being such, must be treated as a subject of science with no more prejudice than any other reality. It behooves each party to strive to understand the other, with the conviction that the other has something worthy to be understood; and with the conviction that when mutually recognized this something will be the basis of a complete reconciliation."—Herbert Spencer, First Principles, p. 21.
II.
Spontaneous Generation. [Page 54.]
Professor Tyndall, describing his own experiments, says, "The experiments have already extended to 105 instances, not one of which shows the least countenance to the doctrine of spontaneous generation." Communicated to Royal Society of London, December 21, 1876.—Nature, vol. xv. p. 303.
III.
Energy and Force. [Page 96.]
The term Force is by many authors used as equivalent to Energy, rather than as a distinct term for the amount of Energy. Force is thus used by Sir W. R. Groves. "The term Force, although used in very different senses by different authors, in its limited sense may be defined as that which produces or resists motion." ... "I use the term Force ... as meaning that active principle inseparable from matter which is supposed to induce its various changes." ... "All we know or see is the effect; we do not see Force—we see motion or moving matter."—The Correlation of Physical Forces, sixth edition, by the Hon. Sir W. R. Grove, pp. 10, 11.