Table of contents

New slipform uses free-flow hopper, by F. W. Haws and C. W. Lauritzen 63

Test tube virus, by G. W. Cochran, A. S. Dhaliwal, and J. L. Chidester 66

Abortion in sheep, by J. Storz and M. L. Miner 68

Physiological response of plants to drought, by H. H. Wiebe 70

The national land reserve in Utah, by R. D. Nielson 72

Research in the animal sciences, by J. A. Bennett 75

Efficiency of farm enterprizes, by E. M. Morrison 80

Research reports 85