Proceedings of the American Association for the Advancement of Science, Հատոր 53

Agricultural College Albert Arthur Association Avenue Baltimore Bldg Boston Botany Broadway Brooklyn Building Bureau Cambridge Charles Charles W Chem Clark Cleveland Colo Columbia University Conn Cornell University Department of Agriculture East Edward Edwin Francis Frank Franklin Frederick geographical geometry George Harry Haven Henry High School Howard Instructor Iowa Ithaca James John Joseph Kansas Lafayette College Lehigh University Lewis Louis Madison Mass Miller Minn Miss Museum non-Euclidean geometry Normal School North Observatory Ohio Ohio State University P. O. Box Park Philadelphia Pittsburg President Prof Professor of Biology Professor of Chemistry Professor of Mathematics Professor of Physics Robert Samuel Science Secretary Section Smith Street Texas Thomas U. S. Dept U. S. Geological Survey U. S. Naval Observatory Univ University of Chicago University of Kansas versity Vice-President Walter Washington West William William H Yerkes Observatory York