The question of the origin of the loess of the Mississippi valley has attracted the attention of the geologists of the country for two-thirds of a century. The consideration of the question has been left almost entirely to geologists, who have offered various explanations of loess-formation, all based practically on physical grounds.
Proceedings of the Iowa Academy of Science
©1908 Iowa Academy of Science, Inc.
"The Genesis of Loess: A Problem in Plant Ecology,"
Proceedings of the Iowa Academy of Science, 15(1), 57-74.
Available at: https://scholarworks.uni.edu/pias/vol15/iss1/10