The exercises consisted of an exhibition of Arctic photographs {xi} by General A. W. Greely, U. S. A., comprising lantern-slide views from photographs taken during the expedition to Lady Franklin bay in 1881, and never before exhibited in the city. _November 27, 1891. 57th meeting_. Meeting held in the Assembly Hall of the Cosmos Club. Vice-President Hayden in the chair. Attendance, 65. Mr. Herbert G. Ogden made an oral communication on "The geographic position of Mount St. Elias," illustrated by a chart exhibiting the position of St. Elias, Icy bay, Yakutat bay, and the adjacent coast as determined (1) from various surveys compiled by the United States Coast and Geodetic Survey, (2) by Mark B. Kerr during the first expedition of the Society, and (3) by I. C. Russell during the second expedition. The communication was discussed by Messrs Mendenhall, Douglas, and Vice-President Hayden. Mr. E. E. Howell then exhibited and briefly described a relief model of the United States, constructed on the natural curvature, the vertical scale being three times that of the horizontal. Remarks were made by Messrs Ogden, McGee, Johnson, Mendenhall, Howell, Hayden, and others. _December 4, 1891. Special meeting_. Meeting held in the Lecture Hall of Columbian University. Mr. William Eleroy Curtis delivered an address on "Portraits of Columbus." The lecturer exhibited copies of all Columbus' portraits extant, these having been prepared for the World's Columbian exposition. _December 11, 1891. 58th meeting_. Meeting held in the Lecture Hall of Columbian University. Vice-President Greely in the chair. Attendance, 400. Mr. I. C. Russell gave an account of the Mount St. Elias exploration of last summer, illustrated by a map and lantern slides. _December 18, 1891. Special meeting_. Meeting held in the Lecture Hall of Columbian University. Vice-President Hayden in the chair. Attendance, 100. Mr. F. H. Newell delivered an address on "Petroleum and natural gas." The lecture was illustrated by lantern slides made from photographs taken in the oil regions of the United States. {xii} _December 23, 1891. 59th_ (_4th annual_) _meeting_. Meeting held in the Assembly Hall of the Cosmos Club. Vice-President Greely in the chair. The annual report of the Secretaries was presented, amended, and adopted. The annual report of the Treasurer was presented and referred to an auditing committee consisting of Messrs P. H. Christie, Middleton Smith, and E. E. Haskell. The annual election of officers for the year 1892 was then held, with the following result: _President_--Gardiner G. Hubbard. _Vice-Presidents_--H. G. Ogden (land). Everett Hayden (sea). A. W. Greely (air). C. Hart Merriam (life). Henry Gannett (art). _Treasurer_--C. J. Bell. _Recording Secretary_--F. H. Newell. _Corresponding Secretary_--E. R. Scidmore.