Iowa State Journal of Research



Preparation and chelate stability of (ethylenedinitrilo)tetra-a-propionic acid. Charles A. Goetz and Frederick J. Debbrecht. 267

The succinoxidase system in Myrothecium verrucaria. James L. Hilton and Frederick G. Smith. 279

The effects of the European corn borer, Pyrausta nubilalis (Hbn.), on corn yield. W.F. Kwolek and T.A. Brindley. 293

Iowa Ascomycetes III. Diaporthaceae: Diaportheae. Joseph C. Gilmam, Lois H. Tiffany, and R.M. Lewis. 325

Production of bottom fauna in the Provo River, Utah. Arden R. Gaufin. 395