[[3]] First Principles.

[[4]] Confession of Faith of a Man of Science.

[[5]] Riddle of the Universe.

[[6]] [Appendix XII.]

[[7]] Schleiermacher.

[[8]] St. Andrews Addresses.

[[9]] [Appendix XIII.]

[[10]] Martineau, Hours of Thought, ii. p. 110.

[[11]] Martineau, Hours of Thought, ii. p. 114.

[[12]] Faith of a Christian.