Mr. Sergius Stepniak delivered an address on "The Russian peasantry."
April 3, 1891. 51st meeting.
Meeting held in the Assembly Hall of the Cosmos Club, Vice-President Hayden in the chair. Attendance, 35.
A paper on "The Mackenzie river and Colinson," by Vice-President Greely, was read by title in the absence of the author.
Ensign J. A. Hoogewerff, U. S. N., presented an account of the "Magnetic work of the United States Naval Observatory." The paper was discussed by Messrs Baker, Abbe, Ogden, Hayden, and Hoogewerff.
Mr. F. H. Bigelow presented a paper on "Auroral streamers."
Mr. Cleveland Abbe made some remarks on "Theories of magnetic phenomena."
April 11, 1891. Special meeting.
Meeting held in the Lecture Hall of the National Museum. President Hubbard in the chair. Attendance, 750.
Major J. W. Powell delivered an address on "The Grand cañon of Colorado river."