The record of this well is of special importance because it supplements and corrects the published records of the earlier city wells. It is based almost wholly upon drillings taken at frequent intervals directly from the sand pump. Unfortunately samples of the first ninety feet were not saved, within which space the drill must have passed through the beds lying between the lowest recognized Devonian and the Le Claire beds of the Upper Silurian. The interval, in part at least, can be supplied from outcrops in the immediate vicinity.
Proceedings of the Iowa Academy of Sciences
©1894 Iowa Academy of Science, Inc.
Norton, Wiliam Harmon
"Geological Section of the Y.M.C.A. Artesian Well at Cedar Rapids, Iowa,"
Proceedings of the Iowa Academy of Science, 2(1), 194-196.
Available at: https://scholarworks.uni.edu/pias/vol2/iss1/40