Tyndall on impossibilities in nature, 196; on the certainty of the facts of religious experience, 296; admits that the great problem of the age is to find a legitimate satisfaction for the religious emotions, 300; prescribes the conditions under which it must be solved, 301; admits that religion can not be dislodged from the heart of man, 304; believes in the existence of God, 312; his attack on the efficacy of prayer from the stand-point of science, 321-338; does not deny that God may create energy, 332; admits the interference of personal volition in nature, 332-334; grants that the conception of a universal Father who controls the phenomena of nature is not unscientific, 337; distinguishes between the force which animates nature and the God who answers prayer, 338-340. U. Unconditioned Will the principle of all reality, efficiency, and perfection, 34, 41-48. Unconscious intelligence, doctrine of, 225; impossibility of forming any conception of, 226, 227; no difficulties relieved by this hypothesis, 232-235. Uniformity of Nature, meaning of the term, 193-196, 325-330. Uniformity of the course of nature not an intuitive belief, 99, 188-190, 321, 326; an assumption, 322; what ground is there for this assumption? 322-324. Unity, demand of the reason for, 23. Unity of the Cosmos, 15. Universal beliefs, authority of, 100, 101. Universal Father controlling nature a scientific conception, 336, 337. Universe an effect, 21; had a commencement in time, and will therefore have an end, 98-121; not a conservative but a dissipative system, 118-121; dependent on the Divine conservation every moment, 174-177. V. Vito-dynamical theory of the origin of things, 299. Volition, reality of personal, 334. W. Wallace on unconscious intelligence, 226; regards all force as will-force, 39. Wesley on Divine conservation of the world, 179. Whedon, Dr., on causation in the will, 390-391; on the so-called strength of motives, 396, 397, 399, 400; on Divine foreknowledge, 404; on equation of probational advantages, 415. Whewell, Prof., on law and cause, 200; on the origin of force, 341. Will the fountain-head of all force, 38; so recognised by scientists, 39, 40; this doctrine the balancing-point of a moral theism, 37. Will, the freedom of the, 380-387; direct testimony of consciousness, 381-384; presupposed by the idea of moral obligation, 384, 385; and by the sense of obligation, 385, 386. Will the real essence of the soul, 35, 36; is more than mere power of energy, 35; the synthesis of reason and power, 197. Will, the unconditioned, 34; the absolute first principle, 25; the Divine will the source of all the forms of force in the universe, 237.