At the meeting of the Geological Society which was held on December 18th, 1912, I gave my first impressions of the cranial cast which Dr. Smith Woodward had sent me three days before the meeting. On the present occasion it is not my intention to say anything further in reference to the brain of Eoanthropus (because I am preparing a full report upon it for presentation to the Royal Society); but, as there has been considerable criticism of the restoration of the brain-case, I should like to take this opportunity of expressing my opinion that none of the criticism has affected the accuracy of the preliminary note upon the cranial cast which I communicated to this Society in December 1912. As the correct restoration of the cranium was the necessary preliminary to any detailed study of the form of the brain, Dr. Smith Woodward kindly permitted me to examine the fragments of the skull, and make an independent investigation with the view of determining what positions they originally occupied in the skull. This examination revealed a multitude of structural features which indicate precisely the true position and orientation of each of the fragments; and there is now no doubt that the reconstruction of the skull which Dr. Smith Woodward exhibited to the Geological Society in December 1912 was a much closer approximation to the truth than any of the various models so far exhibited in public by his critics. In the course of my examination of the fragments last November,