[03-21] Observations on the Earthquake in the Upper Mississippi Valley, May 26, 1909
Observations on the Earthquake in the Upper Mississippi Valley, May 26, 1909 Author: Udden, J.A.
[04-09] The Eastward Extension of the Sweetland Creek Shale in Illinois
The Eastward Extension of the Sweetland Creek Shale in Illinois Author: Udden, J.A.
[05-11] On the Earthquake of January 2, 1912, in the Upper Mississippi Valley
On the Earthquake of January 2, 1912, in the Upper Mississippi Valley Author: Udden, Anton D.
[07-14] Cyclonic Distribution of Weather Elements for Davenport, Iowa
Cyclonic Distribution of Weather Elements for Davenport, Iowa Author: Udden, Anton D.