An Attempt to Calculate Approximately the Date of the Glacial Era in Eastern North America, From the Depth of Sediment in One of the Bowl-Shaped Depressions Abounding in the Moraines and Kames of New England
Wright, G. F. (1881). An attempt to calculate approximately the date of the glacial era in eastern North America, from the depth of sediment in one of the bowl-shaped depressions abounding in the moraines and kames of New England. American Journal of Science, s3-21(122), 120–123. https://doi.org/10.2475/ajs.s3-21.122.120