From the Editors. 1

Hruskoci, J.D. and W.R. Fehr. Volumetic determination of seed weight in soybeans. 5

Elliot, A.L., A.M. Thro, and K.J. Frewy. Inheritance of groat-oil content and several other traits in inter-and intra-specific oat matings. 13

Countryman, D.W., D.D. Donovan,K.D. Coder, and P.H. Wray. Potential harvestable volumes and management implications for three upland timber types in eastern Iowa. 25

Hubert, W.A. and D.N. Schmitt. Summer and fall hoop net catches of fish in the upper Mississippi River. 39

Honeyman, M.S. The Iowa State University student-managed Ag 450 farm: A history. 51

Franklin W.L. an A. El-Absy. Application of freeze-marking to wildlife in the field: Prairie dogs. 71

Carlson, R.E., E.S. Takle, and F.R. Deluca. Use of heating degree days in evaluation of household natural gas consumption trends. 77

Dahlgren, R.D. and T.A. Bubolz. Members of conservation-related organizations: Their characteristics, readership, and activism relative to sport hunting. 89

Davies, P.G. The growth and assimilation of the Welsh settlements in Iowa. 107

Poague, L. Mythos and mise-en-scene: Rethinking Chaplin. 129

Brown, N.E., A.B. Peterson, and T.J. Gross. Temperature preference of older adults for a ground beef mixture served hot. 157

Yoshioka, C.F. Social indicators of family leisure satisfaction of two-parent and single-parent families. 167