1931

  1. Extracts of pyrethrum: permanence of toxicity and stability of emulsions
  2. Calcium and Hydrogen ion Concentration and the Interfacial Tension of Pyrethrum Extracts (With Four Text-figures)
  3. The Influence of Manurial Treatment on the Baking Quality of English Wheat. I. A Quality Study of the Rothamsted Broadbalk Wheats
  4. Studies in Sampling Technique: Cereal Experiments. III. Results and Discussion
  5. Studies in Sampling Technique: Cereal Experiments. I. Field Technique
  6. Nitrite formation by soil bacteria, other than Nitrosomonas
  7. The Physiology of Virus Diseases in Plants: II. Further Studies on the movement of mosaic in the Tomato Plant
  8. The Formation Of Intracellular Inclusions In Solanaceous Hosts Infected With Aucuba Mosaic Of Tomato
  9. Biological races in fungi and their significance in evolution
  10. Science of the year - 1931 The biological sciences
  11. LXXIV. On the anomalous flow of a strong solution of lithium chloride through narrow glass tubes
  12. The cultivation and inoculation of lucerne
  13. Studies on soil reaction VII An electrodialysis apparatus for the determination of replaceable bases in soils
  14. The biological filtration of dilute sucrose solutions
  15. The liberation of elementary nitrogen by bacteria
  16. Observations on gall midges affecting fruit trees
  17. The sex ratio at the time of emergence and the occurrence of unisexual families in the gall midges (Cecidomyidae, Diptera)
  18. Notes on the parasites of the cabbage aphid, Brevicoryne brassicae L
  19. Gall midges (Cecidomyidae) whose larvae prevent seed production in grasses (Gramineae)
  20. A new predacious gall midge (Dipt., Cecidomyidae)
  21. Further results of an investigation into the resistance of basket willows to button gall formation
  22. Soils and fertilisers
  23. Studies on soil reaction VIII The influence of fertilisers and lime on the replaceable bases of a light acid soil after fifty years of continuous cropping with barley and wheat (An examination of the Stackyard Field Plots, Woburn Experimental Station) (With two text-figures)
  24. Winter leaching and the manurial value of green manures and crop residues for winter wheat
  25. Precision records in horticulture
  26. On the influence of soil temperature on the germination interval of crops
  27. Mathematical theorems involved in the analysis of variance
  28. The analysis of variance illustrated in its application to a complex agricultural experiment on sugar beet
  29. Notes on frequency-constants
  30. The mean and second moment coefficient of the multiple correlation coefficient, in samples from a normal population
  31. The soil
  32. XVII—The distribution of gene ratios for rare mutations
  33. The evolution of dominance