1. The Soils and Land Use of the District around Aylesbury and Hemel Hempstead. (Sheet 239);Avery,1964
2. An investigation of the Morphology and Development of some Grassland Humus Forms;Barratt,1960
3. A classification of humus forms and microfabrics in temperate grasslands;Barratt;J. Soil Sci.,1964
4. Barratt, B.C., in preparation. A revised classification and nomenclature of microfabrics in soil organic horizons.
5. The Park Grass Plots at Rothamsted, 1856–1949;Brenchley,1958