And now this brief history of the efforts and too early extinction of a devoted life, otherwise it may be conjectured destined to have rendered no mean service in the extension of scientific knowledge and research, may be concluded with a few words, written soon after his death by Mr. Mackenzie to one of his brothers with reference to the position of his grave. “Lonely the spot, no doubt,” he writes, “is, in a certain sense; but, in another, your brother’s grave is surrounded by all the activities of the great Creator and Father of all. Flowers will blossom around it, though not planted by mortal hand; birds will sing over it, and never weary in repeating the sweet notes which Nature has taught them. I have not been there myself, but I have no doubt the naturalist would not think your brother’s grave a lonely spot; whilst to the Christian such a spot is the quiet resting-place to which the body sank when the spirit was called away by God the Father.” [Illustration: “RAIL.”] APPENDIX. I. ETHNOLOGY. By GEORGE ROLLESTON, M.D., F.R.S. Linacre Professor of Anatomy and Physiology in the University of Oxford. The following human bones--viz. four skulls, six lower jaws, four cervical vertebræ, one large and one small sized scapula, two small sized and fragmentary humeri, a fragment of a very slight but adult ulna, four cervical vertebræ, and five more or less fragmentary ribs--have been put into my hands by Mr. C. G. Oates, with information to the effect that they had belonged probably to a Bushman horde massacred somewhere between the Tati and Ramaqueban rivers, in S. lat. 20° 54′, and long. 27° 42′. With these human bones came some bones of _Equus_ (_caballus_ or _zebra?_); also of one large ruminant (_Bos taurus_ or _Bos caffer_), and one smaller; and part of the skull of an ostrich (_Struthio camelus_); and, later, the feet-bones of an elephant (_Elephas africanus_). All these bones had been collected by my former pupil, Mr. Frank Oates, of Christ Church, Oxford. The four skulls had not their lower jaws assigned to them; but to three of them jaws were assignable, which in all probability had really belonged to them, being very exactly coadaptable, to say nothing of their having been sent in company with them and with certain cervical vertebræ. These six lower jaws are by far the most important bones as regards the question of the nationality of the entire “find.” If, indeed, these half dozen lower jaws had been brought to me with no other accompaniments and with no other information than that they had been all brought from one spot in Africa, I think I should have been justified in saying that they had belonged to no other known African race than the Khoi-Khoin, or its Central African representative, the Akka. For they all six alike show