Some years ago in an article entitled "The Loess and Its Fossils," the writer advanced certain opinions the modification of which seems to be called for by subsequent investigation and thought. In that paper it was shown, principally from a study of the fossils, that the theory of the lacustrine origin of the loess, held with very few exceptions by American writers, is untenable, and that the origin of the loess in violent fluviatile floods, also sometimes suggested, is equally improbable, and the theory was there offered that the deposit was formed in ponds and lakes similar to those which were formerly abundant in northern Iowa, and by quiet overflows of the sluggish prairie streams.
Proceedings of the Iowa Academy of Sciences
©1895 Iowa Academy of Science, Inc.
"A Theory of the Loess,"
Proceedings of the Iowa Academy of Science, 3(1), 82-89.
Available at: https://scholarworks.uni.edu/pias/vol3/iss1/24