Measurements of form, orientation, and spacing of drumlins were made from topographic maps and aerial photographs of areas 1) near Boston, Massachusetts, 2) near Weedsport, New York, and 3) in Blaine County, Montana, and Pierre County, North Dakota. It was found that individual drumlins depart slightly from the ideal ellipsoidal form. Orientations of drumlins within small areas are characterized by normal distributions. Spacing between drumlins is characterized by multimodal distributions with some indications of periodicity.