TITLES AND ABSTRACTS OF PAPERS.

The article presents various titles and abstracts of research papers related to geography by the Association of American Geographers. Some of papers included are "Problems of Geographic Influence," by Albert Perry Brigham, "Some Geographic Factors Influencing Brazilian Trade," by Walter S. Tower, "Postglacial Migrations of Vegetation in the Middle West," by Henry Allan Gleason, "Bases for Dividing the United States into Physiographic Provinces," by N. M. Fenneman, "The Losses of Nebraska," by G. E. Condra.