Distinguished scientist, writer and editor, Philip H. Abelson has labored fruitfully in the interpretation of science both to the scientific community and to the world at large. As a scientist he has been associated with the scientific laboratories of the Carnegie Institution and the Office of Naval Research as scholar and administrator. Through his original research and scientific writing, he has contributed to the general store of scientific knowledge. Since 1962 he has been editor of Science, the official journal of the American Association for the Advancement of Science. In this post he has been an eloquent spokesman for the scientific enterprise in breadth and depth and has been notably successful in correlating the interests of his own scientific colleagues and those of an enlarging company of educated laymen. For his effective and courageous service as interpreter and defender of science and its humane concerns, we are pleased to honor him here today. I have the honor of presenting Philip Hauge Abelson for the degree of Doctor of Science, honoris causa.