History 6. Lecture on the Roman Catacombs. I. Illustrated Professor Emerton. Harvard 1, 11 a.m.
Open to the public.
Mathematical Seminary. Applications of complex numbers to trigonometry. Mr. A. B. Frizell. University 19, 3.30 p. m.
The lecture will be followed by a discussion of problems to be announced on the bulletin board.
Open to all members of the University.
Faculty of Arts and Sciences. University 5, 4 p. m.
Illustrated Lecture. The Triumph and Fall of Nineveh. The New Babylonian Empire (722-538 B. C). Professor D. G. Lyon. Boylston Hall, 7.30 p. m.
The public are invited.
Geological Conference. Mr. F. P. Gulliver, "The Ice-sheet on the Newtonville Sand-plain": Mr. T. A. Jaggar, "Fossil Ripple-marks"; Mr. J. F. Spurr, "The Iron Region at Torbrook, N. S." Geological Laboratory, 7.45 p. m.
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CLASS DAY, JUNE 23, 1876.
