that man’s material organism is the cumulative result of long evolution proclaim that human mind, the immaterial concomitant of the material organism, is also the cumulative result of long evolution. We might just as well recognise facts first as last, for they will have to be recognised some time. Truths are not put down by inhospitality—they are simply put off. The universe has a policy, a program. We may close our eyes to the facts around us, hoping in this way to compel them to pass away or be forgotten. But they do not pass away, nor will they be forgotten. They simply become invisible. They will live on and present themselves to other minds or ages or climes more hospitable or honest than our own. The only proper attitude of mind to assume toward the various doctrines existing among men is the attitude of perfect willingness to believe _anything_—anything that appeals to us as being reasonable and right. The great majority of men, however, are intellectual solids—unable to move and unwilling to think. They have certain beliefs _to which they are determined to hold on_, and everything that does not fit in with these beliefs is rejected as a matter of course. II. Evidences of Psychical Evolution. That mind has evolved, and that there is a psychical kinship, an actual consanguinity of feelings and ideas, among all the forms of animal life is proved incontestably by the following facts: 1. The evolution of mind is implied by the fact of the evolution of structures. ‘I hold,’ says Romanes, in the introduction to his great work on ‘Mental Evolution,’ ‘that, if the doctrine of organic evolution is accepted, it carries with it, as a necessary corollary, the doctrine of mental evolution.’ It makes no difference what theory we adopt regarding the essential natures of the physical and the psychical—whether we agree with the materialist that mind is an attribute of matter, with the idealist that matter is a creation of mind, with the monist that mind and body are only different aspects of the same central entity, or with the dualist that body and soul are two distinct but temporarily dependent existences—we must in any case recognise the fact, which is perceived by all, that there is an ever-faithful parallel between the neural and psychical phenomena of every organism. And if the elements which enter into and make up the physical structure of man have been derived from, and determined by, preceding forms of life, the elements which enter into and make up the psychical counterpart of the physical have also, without any doubt, been inherited from, and determined by, ancestral life forms.