Monday, November 9.

President and Fellows of Harvard College. Meeting at No. 50 State St., Boston, 10.30 A. M.

Physical Colloquium. Theory of Refraction in Gases; Mr. H. L. Blackwell. The Absorption and Fluorescent Spectra of Sodium; Dr. H. W. Morse. Jefferson Physical Laboratory, Room 25, 5 P. M.

Seminary of American History and Institutions. Non-official Sources in American History; Professor Hart Pierce 109, 3.30 P. M.

Seminary of Economics. Industrial Combinations in Germany, with special reference to Coal; Dr. F. Walker. University 23, 7.30 P. M.

**Religious Union. Business meeting followed by a short address by Dr. Peabody on the purpose of the Society. Phillips Brooks House, third floor, 7.30 P. M.