Is there a Case for Agricultural Subsidies? by B. R. Davidson; Marketing Weights and Ages for Broilers by J. B. Linedale; Spray Irrigation on Dairy Farms by G. Mason and J. G. Bird; Machine Usage in Wheat Growing by P. B. Higgins; Restricting Wheat Production by D. W. G. Treloar; Quotas for Wheat by J. M. Hyde.