Iowa State Journal of Research



Evaluating the effect of European corn borer populations on con yield. J.L. Jarvis, T.R. Everett, T.A. Brindley, and F.F. Dicke. 115

Comparisons of the Iowa forest resource in 1832 and 1954. Robert R. Davidson. 137

The role of nonbonded repulsions in secondary isotope effects. II. Influence on structure; gamma and more distant effects. L.S. Bartell. 137

Exchange of phosphorus between orthophosphate and condensed phosphates in vitro and in soil. R.R. Allmaras, Norio Koiwa, and C.A. Black

Publications of members of the staff of the Iowa State University for the academic year 1960-61. 159