*PHYSICAL COLLOQUIUM. "Crystalline Rectifiers for Alternating Currents." Dr. G. W. Pierce. Jefferson Physical Laboratory, Room 25, 5 P. M.
PHILOSOPHICAL SEMINARY. "The Organization of a Philosophical Course of Study." Professor Royce. Emerson A, 7.30 P. M.
Tuesday, April 2.
FACULTY OF ARTS AND SCIENCES. Meeting at University 5, 4 P. M.
*GEOLOGICAL CONFERENCE. "The Metamorphic Conglomerates of Fogland Point, R. I." Dr. George R. Mansfield. "Physiological Effects of Diminished Air Pressure: 'Hohenkrankheit.'" Professor Ward. Mineralogical Lecture Room, 8 P. M.
**LECTURE. "The Political Conditions in Russia." Rev. Dr. A. Francis, of St. Petersburg, Russia. New Lecture Hall, 8 P. M.
Wednesday, April 3.
*SEMITIC CONFERENCE. "Criticism on Psalm cxviii : 27." Professor Toy. Semitic Museum, Room 2, 4.30 P. M.
COMMENCEMENT PARTS. Professor Briggs will confer with Seniors about Commencement Parts. Sever 11, 3.30 P. M.
Thursday, April 4.
*CLASSICAL CONFERENCE. "Victorious and Codex I of Aristophanes." Dr. E. Cary. "Some Phases of Antithesis in Herodotus." Mr. C. B. Loughead. "A Lost Work of St. Jerome." Dr. A. S. Pease. Sever 18, 4.30 P. M.
**VESPER SERVICE. Rev. Professor George E. Horr, D.D. Appleton Chapel, 5 P. M. The front seats are reserved for students and for officers of the University and their families till 4.55 P. M.
*PHILOSOPHICAL CLUB. "An Estimate of Pragmatism." Professor R. B. Perry. Emerson B, 8 P. M.
BOSTON SYMPHONY ORCHESTRA CONCERT. Miss Snelling, Soloist. Sanders Theatre, 8 P. M. Program: Berlioz, Overture, "Carnaval Romain"; Wagner, Aria, "Gerichte Gott," from "Rienzi";--Songs with piano--; Beethoven, Symphony No. 8.
Friday, April 5.
*ZOOLOGICAL CLUB. Short Papers. Messrs. Belding, Esterly, and Long. Zoological Laboratories, Fourth Floor, M. Z., Room 4, 4.45 P. M.
*NATURAL HISTORY SOCIETY. "The Bowdoin College Expedition to Labrador." (Illustrated by the Stereopticon.) Professor Austin Cary. Harvard Union, 8 P. M.
Saturday, April 6.
FACULTY OF MEDICINE. Meeting at Medical School, Boston, 8 P. M.
**LECTURE. "Some Phases of the Tuberculosis Problem." Dr. Arthur K. Stone. Medical School, Longwood avenue, Boston, 8 P. M.