1. The need for biological investigations in the specific determination of gall midges
  2. Review of work on nutritional problems in forest nurseries
  3. Nitrogen fertilisers for sugar beet
  4. Report of the Bee Department 1949
  5. A culture method for growing small free-living amoebae for the study of their nuclear division
  6. Changes in the behaviour of honey-bees following their recovery from anaesthesia
  7. The infection of plants by viruses through roots
  8. The structure and development of the larval cuticle of Diataraxia oleracea (Lepidoptera)
  9. An improved micro-method for the determination of fluorine based on an examination of the fluoride-fluosilicate equilibrium
  10. Inflammability of cereal crops in relation to water-content
  11. Preparation of Standardized Actinomycete Colonies
  12. I Section of soil physics 113 Soil moisture and evaporation
  13. Clay minerals and colloid chemistry - a general introduction
  14. Swelling chlorite
  15. Problems presented by nodule bacteria and the legume host
  16. Organic chemistry 8 Proteins
  17. A colorimetric method for the determination of pentoses in the presence of hexoses and uronic acids
  18. Cellulase from leaves and roots of tobacco
  19. Interlamellar adsorption of protein monolayers on pure montmorillonoid clays
  20. Control of plant nematodes
  21. Indications of provenance in some Anglesey drift soils
  22. The analysis of change-over trials
  23. Sampling on Successive Occasions with Partial Replacement of Units
  24. The competition between barley and certain weeds under controlled conditions IV Competition with Stellaria media
  25. The isolation of Nitrosomonas europaea in pure culture
  26. Gilbert Wooding Robinson 1889-1950 obituary
  27. Solvation of clay minerals in relation to crystal structure: inter-lamellar adsorption by clay minerals.
  28. A Colour Reaction Applicable to the Pyrethrins
  29. The effects of concentration of poison and the amount applied on the toxicity of insecticidal dusts to adult Tribolium castaneum Hbst
  30. The effect of insecticides on respiration II The effects of a number of insecticides on the oxygen uptake of adult Tribolium castaneum Hbst. at 25° C
  31. Mechanism of action of organo-phosphorus compounds as insecticides.
  32. The analysis of phosphate fertilizers
  33. Heat inactivation of leaf‐roll virus in potato tubers
  34. The oxidation of manganese by peroxidase systems
  35. The use of probits in combining percentage kills
  36. Deposition of air-borne particles on trap surfaces
  37. The estimation of error in rectangular lattices
  38. Stem eelworm and clover
  39. Oats and varietal susceptibility to stem eelworm infestation
  40. The Absorption of Ions by Excised Root Systems I Apparatus and preliminary experiments
  41. The influence of photoperiod and temperature on the induction of diapause in Diataraxia oleracea L.(Lepidoptera)
  42. Two species of Aphelenchoides associated with strawberry bud disease in Britain
  43. Buried Bag Technique for Testing D-D as a Soil Fumigant against the Potato-root Eelworm
  44. Investigations on the Emergence of Larvae from Cysts of the Potato-Root Eelworm Heterodera rostochiensis. 3. Larval Emergence in soil under the influence of Potato-Root Diffusate
  45. Investigations on the Emergence of Larvae from Cysts of the Potato-Root Eelworm Heterodera rostochiensis 2. The Form of the Hatching Curve
  46. A study of phage-resistant mutants of Rhizobium trifolii
  47. Interpreting relationships between the concentrations of plant viruses and numbers of local lesions
  48. Restoration of the ability of some heated antisera to flocculate specifically their antigens
  49. Use of Antisera to identify Nodule produced by the Inoculation of Legumes in the Field
  50. Electron micrographs of spores of some British gasteromycetes
  51. An electron-microscope study of potato virus X in different states of aggregation
  52. Methods of applying fertilizer to potatoes planted by machines
  53. Studies on two aphid‐transmitted viruses of leguminous crops
  54. The influence of the bacterial environment on the excystment of amoebae from soil
  55. Studies on the storage of potatoes. III. The composition of the atmosphere in a potato clamp
  56. Studies on the storage of potatoes II. The temperature conditions inside potato clamps
  57. Restricted randomization and quasi-Latin squares
  58. Statistical analysis of results for successive tests on the same organism
  59. The planning of probit assays
  60. The estimation of free iron oxides in soils and clays and their removal
  61. The spread of virus diseases to single potato plants by winged aphids
  62. Roguing potato crops for virus diseases
  63. The microclimate of the potato crop
  64. The correlation of aphid numbers with the spread of leaf roll and rugose mosaic in potato crops
  65. The effect of potassium on crop yield
  66. Maincrop potato growing in England and Wales
  67. Some observations on the oxidation of soil organic matter in the presence of alkali
  68. Amino-acids in soil
  69. The amino-acid composition of the protein material in soil
  70. Field trials II: the analysis of covariance
  71. Some observation on gleying
  72. A study of enzymes that can break down tobacco-leaf components. 1. Digestive juice of Helix on leaf fibre
  73. Sampling Theory of the Negative Binomial and Logarithmic Series Distributions
  74. Synchronous movement of Aphis fabae Scop.(Hem., Aphididae)
  75. The isolation from normal tobacco leaves of nucleoprotein with some similarity to plant viruses
  76. The formation of nitrates in soil following various crop rotations
  77. The identity of the Swede Midge, with notes on its biology
  78. The nature of precipitated calcium phosphates
  79. Weather and Food - Centenary symposium on meteorology and the community
  80. Diversity as a measurable character of an animal or plant population
  81. Phase coloration in larvae of Lepidoptera
  82. The application of the logarithmic series to the frequency of occurrence of plant species in quadrats
  83. Committee on nutrition problems in forest nurseries: summary report on 1949 experiments
  84. Close cereal cropping. Effect of cultural treatments of wheat on eyespot, lodging, take-all and weeds
  85. The effect of variations in calcium supply, ph value and nitrogen content of nutrient solutions on the response of lettuce and red clover to molybdenum
  86. Some factors affecting the activation of virus preparations made from tobacco leaves infected with a tobacco necrosis virus
  87. Some effects of host-plant nutrition on the multiplication of viruses
  88. Some effects of host nutrition on the susceptibility of plants to infection by certain viruses
  89. The mechanical transmission and some properties of potato paracrinkle virus
  90. Some effects of freezing in the leaf, and of citrate in vitro, on the infectivity of a tobacco necrosis virus
  91. Recent applications of biometrical methods in genetics. 1. Experimental techniques in plant improvement
  92. The water balance of the Stour catchment area
  93. Evaporation over the British Isles
  94. The diffusion of moisture through flax seed
  95. A new design of microsyringe tip for the instrumental insemination of queen honey-bees
  96. Agriculture, sampling and operational research
  97. The insecticidal activity of substances related to the pyrethrins .1. The toxicities of 2 synthetic pyrethrin-like esters relative to that of the natural pyrethrins and the significance of the results in the bioassay of closely related compounds
  98. Experiments on the synthesis of the pyrethrins. Part III. Synthesis of dihydrocinerin-I and tetrahydropyrethrin-I; a study of the action of N-bromosuccinimide on 3-methyl-2-n-alkyl (and alkenyl)-cyclopent-2-en-1-ones
  99. Infestation of a bean field by aphis fabae scop. in relation to wind direction
  100. The comparison of suction trap, sticky trap and tow-net for the quantitative sampling of small airborne insects
  101. A suction trap for small airborne insects which automatically segregates the catch into successive hourly samples