In addition to announcements of meetings and various circulars sent to members from time to time, the Society issues a single serial publication entitled THE NATIONAL GEOGRAPHIC MAGAZINE. During the first two years of the existence of the Society this serial was issued in quarterly numbers. With the beginning of the third year of the Society and the third volume of the _Magazine_ the form of publication was changed, and the serial now appears at irregular intervals in parts or brochures (designated by pages and designed either for separate preservation or for gathering into volumes) which consist either of single memoirs or of magazine brochures made up of articles, notes, abstracts, and other geographic matter, together with the Proceedings and other administrative records of the Society. The _Magazine_ is mailed free to members of the Society and to exchanges. The first two volumes, as well as the separate brochures of the third and the complete volume, are sold at the prices given below by the Secretary, Mr. F. H. Newell, U. S. Geological Survey, Washington, D. C. To To the Members. Public. Volume I, 1889: 4 numbers, 334 pages, 16 plates and 26 figures . . . . . . . . . $1 40 $2 00 Volume II, 1890: 5 numbers, 344 pages, 10 plates and 11 figures . . . . . . . . . 1 40 2 00 Volume III, 1891: Comprising: South America; Annual Address by the President, Gardiner G. Hubbard: pp. 1-30, pl. 1, March 28, 1891 . . . . . . . . . . . . . . $0 15 $0 25 Geography of the Land; Annual Report by Vice-President Herbert G. Ogden: pp. 31-40, April 30, 1891 . . . . . . . . . . . . . . 10 25 Geography of the Air; Annual Report by Vice-President A. W. Greely: pp. 41-52, May 1, 1891 . . . . . . . . . . . . . . . . 10 25 An Expedition to Mount St. Elias, by I. C. Russell: pp. 53-204 (with 8 figures), pls. 2-20, May 29, 1891 85 1 50 Magazine brochure, pp. 205-261, i-xxxv, pl. 21, February 19, 1892 40 75 ----- ----- 1 60 3 00 {vi} IRREGULAR PUBLICATIONS.