Periodicity of caryophyllaeid cestodes in the white sucker, Catostomus commersoni (lacepede). Robert L. Calentine and Leigh H. Frederickson. 243

Cob morphology and its relation to combine harvesting in maize. S.M. Sehgal and William L. Brown. 251

Comparative morphology of the dormant plumule in some genera of Leguminosae. H.P. Hostetter. 269

Taxonomy of the genus Sphenopholis (Gramineae). Kimball Stewart Erdman. 289

The prediction of soil moisture for the winter period in Iowa. R.H. Shaw. 337

Inheritance of quantitative characters in grain sorghum. G.M. Beil and R.E. Atkins. 345