1. Report for 1954,1955
2. Rainfall controlled shelter for research plots;Stansell;Agric. Engng, St Joseph, Mich.,1963
3. An automatic cover for protecting plots from rain;Turner;Rep. Sch. Agric., Nottingham Univ.,1963
4. Experiments in progress 16,1964
5. Experiments in progress 17,1965