Shaw, R.H. Evaluation of effects of weather modification on Iowa corn yields. 209

Garcia, P.A., W.D. Brewer, C.W., Merritt, and H.B. Mead. Nutritional status of adolescent primigravidae: 11. Blood indices during pregnancy and postpartum. 219

Freese, H.M., and D.N. Yarger. Movement of southern corn leaf blight spores. 231

DuVall, J.B. Synergy: a modus operandi for educators in the future. 247

Jones, J.R., D.M. Coon, and R.W. Bachmann. Limnological and fisheries survey of the Upper Skunk River, Iowa. 255

Jennings, C.W., W.A. Russell, W.D. Guthrie, and R.L. Grindeland. Genetics of resistance in maize to second-brood European corn borer. 267