A tablet in honor of the late Prof. Arnold Guyot is soon to be placed in the Princeton College Chapel. This memorial bust has been subscribed for by an hundred alumni of the college who were former pupils of Dr. Guyot, and who erect this tablet in appreciation of his thirty years of faithful labor at Princeton. The tablet itself will be three-fourths Roman bust, set in an erratic boulder which has been secured from the Mt. Blanc chain of the Alps. It was in the study of the formation and character of these boulders that Prof. Guyot made his most important contribution to science. The unveiling exercises will take place on Tuesday, June 10, when the bust will be presented by Prof. Libbey in behalf of the alumni, and received by Dr. Patton for the college.