forth the various conceptions of the divine nature which have been held by men in all ages and to trace them to their origin: in short, he permitted and encouraged the lecturers to compose a history of natural theology or of some part of it. Even when it is thus limited to its historical aspect the theme is too vast to be mastered completely by any one man: the most that a single enquirer can do is to take a general but necessarily superficial survey of the whole and to devote himself especially to the investigation of some particular branch or aspect of the subject. This I have done more or less for many years, and accordingly I think that without being presumptuous I may attempt, in compliance with Lord Gifford's wishes and directions, to lay before my hearers a portion of the history of religion to which I have paid particular attention. That the historical study of religious beliefs, quite apart from the question of their truth or falsehood, is both interesting and instructive will hardly be disputed by any intelligent and thoughtful enquirer. Whether they have been well or ill founded, these beliefs have deeply influenced the conduct of human affairs; they have furnished some of the most powerful, persistent, and far-reaching motives of action; they have transformed nations and altered the face of the globe. No one who would understand the general history of mankind can afford to ignore the annals of religion. If he does so, he will inevitably fall into the most serious misconceptions even in studying branches of human activity which might seem, on a superficial view, to be quite unaffected by religious considerations.

An historical enquiry into the evolution of religion prejudices neither the question of the ethical value of religious practice nor the question of the truth or falsehood of religious belief.

Therefore to trace theological and in general religious ideas to their sources and to follow them through all the manifold influences which they have exerted on the destinies of our race must always be an object of prime importance to the historian, whatever view he may take of their speculative truth or ethical value. Clearly we cannot estimate their ethical value until we have learned the modes in which they have actually determined human conduct for good or evil: in other words, we cannot judge of the morality of religious beliefs until we have ascertained their history: the facts must be known before judgment can be passed on them: the work of the historian must precede the work of the moralist. Even the question of the validity or truth of religious creeds cannot, perhaps, be wholly dissociated from the question of their origin. If, for example, we discover that doctrines which we had accepted with implicit faith from tradition have their close analogies in the barbarous superstitions of ignorant savages, we can hardly help suspecting that our own cherished doctrines may have originated in the similar superstitions of our rude forefathers; and the suspicion inevitably shakes the confidence with which we had hitherto regarded these articles of our faith. The doubt thus cast on our old creed is perhaps illogical, since even if we should discover that the creed did originate in mere superstition, in other words, that the grounds on which it was first adopted were false and absurd, this discovery would not really disprove the beliefs themselves, for it is perfectly possible that a belief may be true, though the reasons alleged in favour of it are false and absurd: indeed we may affirm with great probability that a multitude of human beliefs, true in themselves, have been accepted and defended by millions of people on grounds which cannot bear exact investigation for a moment. For example, if the facts of savage life which it will be my duty to submit to you should have the effect of making the belief in immortality look exceedingly foolish, those of my hearers who cherish the belief may console themselves by reflecting that, as I have just pointed out, a creed is not necessarily false because some of the reasons adduced in its favour are invalid, because it has sometimes been supported by the despicable tricks of vulgar imposture, and because the practices to which it has given rise have often been in the highest degree not only absurd but pernicious.

Yet such an enquiry may shake the confidence with which traditional beliefs have been held.

Thus an historical enquiry into the origin of religious creeds cannot, strictly speaking, invalidate, still less refute, the creeds themselves, though it may, and doubtless often does weaken the confidence with which they are held. This weakening of religious faith as a consequence of a closer scrutiny of religious origins is unquestionably a matter of great importance to the community; for society has been built and cemented to a great extent on a foundation of religion, and it is impossible to loosen the cement and shake the foundation without endangering the superstructure. The candid historian of religion will not dissemble the danger incidental to his enquiries, but nevertheless it is his duty to prosecute them unflinchingly. Come what may, he must ascertain the facts so far as it is possible to do so; having done that, he may leave to others the onerous and delicate task of adjusting the new knowledge to the practical needs of mankind. The narrow way of truth may often look dark and threatening, and the wayfarer may often be weary; yet even at the darkest and the weariest he will go forward in the trust, if not in the knowledge, that the way will lead at last to light and to rest; in plain words, that there is no ultimate incompatibility between the good and the true.

To discover the origin of the idea of God we must study the beliefs of primitive man.

Now if we are indeed to discover the origin of man's conception of God, it is not sufficient to analyse the ideas which the educated and enlightened portion of mankind entertain on the subject at the present day; for in great measure these ideas are traditional, they have been handed down with little or no independent reflection or enquiry from generation to generation; hence in order to detect them in their inception it becomes necessary to push our analysis far back into the past. Large materials for such an historical enquiry are provided for us in the literature of ancient nations which, though often sadly mutilated and imperfect, has survived to modern times and throws much precious light on the religious beliefs and practices of the peoples who created it. But the ancients themselves inherited a great part of their religion from their prehistoric ancestors, and accordingly it becomes desirable to investigate the religious notions of these remote forefathers of mankind, since in them we may hope at last to arrive at the ultimate source, the historical origin, of the whole long development.

The beliefs of primitive man can only be understood through a comparative study of the various races in the lower stages of culture.

But how can this be done? how can we investigate the ideas of peoples who, ignorant of writing, had no means of permanently recording their beliefs? At first sight the thing seems impossible; the thread of enquiry is broken off short; it has landed us on the brink of a gulf which looks impassable. But the case is not so hopeless as it appears. True, we cannot investigate the beliefs of prehistoric ages directly, but the comparative method of research may furnish us with the means of studying them indirectly; it may hold up to us a mirror in which, if we do not see the originals, we may perhaps contemplate their reflections. For a comparative study of the various races of mankind demonstrates, or at least renders it highly probable, that humanity has everywhere started at an