Haugen, A.O. Reproduction of the plains bison. 1

Wittrock, D.D., and N. Wilson. Ectoparasites of the badger, Taxidea taxus (Schreber, 1778) in northwestern Iowa with a list of species recorded from North America. 9

Deonier, D.L. Biology and descriptions of immature stages of the shore fly Scatophila iowana (Diptera: Ephydridae). 17

Zanzalari, D., and R.H. Shaw. Effect of different spring soil-moisture levels on moisture stress. 23

Green, D.E., R.M. Shibles, and B.J. Morghan. Use of hillplots of short rows to predict soybean performance under wide- and narrow-row management. 39

Index to Masters' Theses, 1973-74. 47

Index to Doctoral Dissertations, 1973-74. 74