1931

  1. Rothamsted Conference RC No 10 : The Growth of Cheaper Winter Food for Livestock
  2. Virus diseases of plants
  3. Studies in Sampling Technique - Cereal Experiments II A Small-Scale Threshing and Winnowing Machine
  4. The feeding of Britain
  5. The Changing Outlook in Agriculture
  6. The biological decomposition of plant materials V Some factors determining the quantity of nitrogen immobilised during decomposition
  7. The use of hydrogen peroxide for estimating humification
  8. The Influence of the Proximity of a Solid Wall on the Consistency of Viscous and Plastic Materials III
  9. The isolation of single bacterial cells
  10. The influence of environmental conditions on the development of the angular leaf-spot disease of Cotton. III The Influence Of Air Temperature On Infection
  11. An improved method of maintaining constant humidity in closed chambers
  12. Pyrethrum Flowers - A Quantitative Study Of Their Development
  13. The Evaluation of Pyrethrum Flowers (Chrysanthemum Cinerariaefolium)
  14. Studies on the gums II Tragacanthin—the soluble constituent of gum tragacanth
  15. The Biological Decomposition OF Plant Materials IV The Biochemical Activities on Straws of Some Cellulose‐Decomposing Fungi
  16. The biological decomposition of plant materials IV The effect of hydrogen ion concentration on the rate of immobilisation of nitrogen by straw
  17. On the so-called olfactory pores in the Honey Bee Apis mellifera
  18. Distribution of agar-liquefying bacteria
  19. Possibilities of an international system for the classification of soils
  20. The use of sodium hypobromite for the oxidation of organic matter in the mechanical analysis of soils
  21. On the Structure of the Immature Stages of the Frit Fly (Oscinella Frit Linn.)
  22. Pasteurised and Raw Milk
  23. Coagulation
  24. Some physico-chemical properties of clays. I. Base exchange or ionic exchange
  25. Some physico-chemical properties of clays: II. Hydrogen clay
  26. The Effects of Summer Green Manures on the ammonia and Nitrate Contents of soils Cropped for Winter Wheat. An Examination of the Woburn Green Manure Plots
  27. The biological oxidation of carbohydrate solutions: Part I. The oxidation of sucrose and ammonia in sectional percolating filters
  28. A Comparison of two Agar Media for Counting Soil Micro-Organisms
  29. The Microbiology of Farmyard Manure Decomposition in Soil I. Changes in the Microflora, and their Relation to Nitrification
  30. Biological control II Noxious weeds
  31. Biological control I Insect pests
  32. Recent research on the wing-venation of insects
  33. The efficiency of the correlation coefficient for estimating linkage intensities
  34. The electrical conductivity of aqueous soil suspensions as a measure of soil fertility
  35. Extracts of pyrethrum: permanence of toxicity and stability of emulsions
  36. Calcium and Hydrogen ion Concentration and the Interfacial Tension of Pyrethrum Extracts (With Four Text-figures)
  37. The Influence of Manurial Treatment on the Baking Quality of English Wheat. I. A Quality Study of the Rothamsted Broadbalk Wheats
  38. Studies in Sampling Technique: Cereal Experiments. III. Results and Discussion
  39. Studies in Sampling Technique: Cereal Experiments. I. Field Technique
  40. Nitrite formation by soil bacteria, other than Nitrosomonas
  41. The Physiology of Virus Diseases in Plants: II. Further Studies on the movement of mosaic in the Tomato Plant
  42. The Formation Of Intracellular Inclusions In Solanaceous Hosts Infected With Aucuba Mosaic Of Tomato
  43. Biological races in fungi and their significance in evolution
  44. Science of the year - 1931 The biological sciences
  45. LXXIV. On the anomalous flow of a strong solution of lithium chloride through narrow glass tubes
  46. The cultivation and inoculation of lucerne
  47. Studies on soil reaction VII An electrodialysis apparatus for the determination of replaceable bases in soils
  48. The biological filtration of dilute sucrose solutions
  49. The liberation of elementary nitrogen by bacteria
  50. Observations on gall midges affecting fruit trees
  51. The sex ratio at the time of emergence and the occurrence of unisexual families in the gall midges (Cecidomyidae, Diptera)
  52. Notes on the parasites of the cabbage aphid, Brevicoryne brassicae L
  53. Gall midges (Cecidomyidae) whose larvae prevent seed production in grasses (Gramineae)
  54. A new predacious gall midge (Dipt., Cecidomyidae)
  55. Further results of an investigation into the resistance of basket willows to button gall formation
  56. Soils and fertilisers
  57. 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)
  58. Winter leaching and the manurial value of green manures and crop residues for winter wheat
  59. Precision records in horticulture
  60. On the influence of soil temperature on the germination interval of crops
  61. Mathematical theorems involved in the analysis of variance
  62. The analysis of variance illustrated in its application to a complex agricultural experiment on sugar beet
  63. Notes on frequency-constants
  64. The mean and second moment coefficient of the multiple correlation coefficient, in samples from a normal population
  65. The soil
  66. XVII—The distribution of gene ratios for rare mutations
  67. The evolution of dominance