The American Academy of Arts and Sciences, the second oldest learned society in the United States, will hold a meeting in the Geological Section of the University Museum this afternoon and evening. The afternoon session will be devoted to an exhibit in which members of the Natural History Departments of the University will show and describe a number of specimens, instruments, etc. , mostly illustrative of current work. The exhibit will consist of 32 parts, representing the departments of Zoology, Botany, Mineralogy and Petrography, Geology and Geography, and the Peabody Museum. One of the most interesting features will be the seismograph records of recent earthquakes, including that of Messina in December, 1908. There will also be illustrations of the work done in Montana by the Harvard Summer Geological Expedition. Members of the Faculty and their friends have been invited to the afternoon meeting.

At 6. 30 o'clock the Academy and its guests, including some 20 professors of natural history from New England colleges, will dine at the Colonial Club on Quincy street.

At the evening session in the Geological Lecture Room, the Rumford Medal, awarded by the Academy in recognition of distinguished research and investigation, will be presented by the president of the Academy, Professor John Trowbridge '65, to Mr. Charles G. Curtis of New York City, who will then speak on "The Development of the Steam Turbine in the United States. " Professor G. A. Reisner '89 will also give an illustrated account of "The Archaeological Survey of Lower Nubia. "