Most Popular Papers *
Structure in the Des Moines Series at Redfield, Iowa
Charles S. Gwynne
The Plant Rusts (Uredinales) of the Driftless Area of Northeastern Iowa
Lois H. Tiffany and George Knaphus
Influence of Blue-Green Algae on the pH and Buffer Capacity of Culture Media
Ruth B. Wildman, Barbara L. Benner, Douglas D. Held, and Charles W. Schauberger
Some Aspects of the Chemistry of Samarium (II) Compounds
Alexander I. Popov and Wesley W. Wendlandt
* Based on the average number of full-text downloads per day since the paper was posted.
» Updated as of 04/19/18.