1. Report of the Bee Department 1951
  2. Nuclear division in nine species of small free-living amoebae and its bearing on the classification of the order Amoebida
  3. The relation between the foraging range of honeybees and their honey production
  4. The physiological basis of variation in yield
  5. The preferences of honeybees for solutions of various sugars which occur in nectar
  6. An investigation of the sugars present in the nectar of flowers of various species
  7. The influence of variations in the supply of carbohydrate on the process of nectar secretion
  8. Enrichment and isolation of anaerobic cellulolytic soil bacteria
  9. A Comparison of a Direct- and a Plate-counting Technique for the Quantitative Estimation of Soil Micro-organisms
  10. Soil colloids
  11. A Study of Rock Weathering with Reference to the Soils of the Malvern Hills II Weathering of appinite and Ivy Scar Rocks
  12. A Study of Rock Weathering with Reference to the Soils of the Malvern Hills I Weathering of Biotite and Granite
  13. The determination of glucosamine by alkaline decomposition
  14. The technique of differential thermal analysis (DTA) I The quantitative aspect
  15. Control of plant nematodes
  16. The Eelworm problem - Biological aspects - Plant eelworms of the genus Heterodera
  17. Pot tests of nematicides against potato-root eelworm I Pilot test and methods
  18. Toxicity Tests with Vinegar Eelworm. I. Counting and Gulturing
  19. An improved laboratory apparatus for applying direct sprays and surface films, with data on the electrostatic charge on atomized spray fluids
  20. The construction of balanced designs for experiments involving sequences of treatments
  21. Factors affecting the survival of Plasmodiophora brassicae Wor. in the soil and its assessment by a host test
  22. Minimum phosphate and magnesium requirements of nitrifying bacteria
  23. Some organic substances and the nitrifying bacteria
  24. Soil fauna investigations
  25. The problem of the estimation of the insecticidal activity of pyrethrum by biological and chemical methods
  26. Effect of Ultra-Violet Radiation on the Respiration-Rates of Tobacco Leaves and its Reversal by Visible Light
  27. The relation of water absorption by wheat seeds to water potential
  28. The relation of germination of wheat to water potential
  29. Some problems of polymorphisms in insects
  30. Water and plant growth
  31. American fertilizers practice and problems
  32. Chemical composition of a sample of mycelium of Penicillium griseofulvum Dierckx
  33. Proceedings of international nematology symposium and training course, Rothamsted Experimental Station, 3-14 September 1951
  34. Some effects of high temperature on the susceptibility of plants to infection with viruses
  35. Some factors affecting the transmission of leaf‐roll virus by aphids
  36. The origin of the odours by which honeybees distinguish their companions
  37. Hydrogen peroxide formation in oxidations catalysed by plant α-hydroxyacid oxidase
  38. The oxidation of amines by extracts of pea seedlings
  39. The oxidation of manganese by enzyme systems
  40. Irreversible dehydration in montmorillonite
  41. A test for montmorillonite
  42. A New Approach to the Problems of the Spread of Aphids and to Insect Trapping
  43. An improved method of separating eelworm cysts from debris
  44. Presidential Address - fungus spores
  45. Spore Content of the Atmosphere Near the Ground
  46. The Fitting of Grouped Truncated and Grouped Censored Normal Distributions
  47. Rotylenchus coheni n.sp. (Nematoda: Tylenchida) parasitic on the roots of Hippeastrum sp
  48. Tylenchorhynchus tessellatus n.sp. (Nematoda : Tylenchida)
  49. Eelworm galls mistaken for ergot in flowers of Canadian grasses
  50. Investigations into the host ranges of Ditylenchus destructor and D. dipsaci
  51. The influence of the host on the dimensions of the plant parasitic nematode, Ditylenchus destructor
  52. The Absorption of Ions by Excised Root Systems III Observations on roots of pea plants grown in solutions deficient in phosphorus, nitrogen or potassium
  53. Control of virus yellows in sugar beet seed crops
  54. Possible role of basidiospores as air-borne allergens
  55. A disease of Scabiosa caucasica caused by the nematode Aphelenchoides blaslophthorus n.sp
  56. The Estimation of the Cyst Contents of the Potato-root Eelworm H. rostochiensis
  57. The bio‐assay of potato‐root diffusate
  58. Effect of Specific Polysaccharides from the Host Bacteria and of Ribonuclease on the Multiplication of Rhizobium Phages
  59. Food transmission within the honeybee community
  60. Chromatographic separation of the pyrethrins
  61. Division of labour in the honeybee community
  62. Recent Trends in Fertilizer Practice in England and Wales. Part I. The National Position
  63. Recent Trends in Fertilizer Practice in England and Wales. Part II. The Use of Fertilizers on Cereals, Root Crops and Grassland
  64. Some morphological features associated with poor soil drainage
  65. Analysis of factorial arrangements when the data are proportions
  66. The analysis of lattice designs when a variety is missing
  67. A table of Abbott's correction for natural mortality
  68. Some statistical aspects of anthropometry
  69. Organic derivatives of montmorillonite
  70. Organic derivatives of montmorillonite
  71. Hydrous micas
  72. Stem eelworm attacking carrots
  73. The influence of planting date and manuring on the incidence of virus diseases in potato crops
  74. The effect of seed-rate on yield of cereals
  75. The place of statistics in field experiments
  76. Possibilities of marginal land reclamation. Some results of a survey in England and Wales
  77. Rothamsted experiments on field beans 1. Manuring and cultivation of field beans
  78. The nature of soil-nitrogen complexes
  79. Translocation of Iron in Podzol Formation
  80. The distribution of iron and aluminium oxides in gley soils
  81. Symbiotic adaptation in local strains of red clover and nodule bacteria
  82. Studies on the Physiology of Nodule Formation: III. Experiments on the Excision of Root-tips and Nodules
  83. Host factors influencing infection and nodule development in leguminous plants
  84. Acute die-back of clove trees in the Zanzibar Protectorate
  85. A discussion on symbiosis involving micro-organisms : Introduction. The symbiosis between Rhizobium and leguminous plants and the influence on this of the bacterial strain
  86. A discussion on symbiosis involving microorganisms
  87. Arid zone research
  88. The fractionation and enzymic breakdown of some phosphorus compounds in leaf tissue
  89. Basic research into contraception
  90. Studies on the aphid transmission of a strain of henbane mosaic virus
  91. A Collaborative Investigation into Methods of Chemical Analysis of Ground Pyrethrum Flowers
  92. The Number of oocytes in ovarian fragments after compensatory hypertrophy
  93. Soluble and Available Nitrogen in Manurial Composts
  94. Changes in the Distribution of Nitrogen during the Composting of Straw
  95. The gall midges of St. John's Wort (Hypericum spp.), with descriptions of two new species
  96. Studies of fluctuations in insect populations XII Further evidence of prolonged larval life in the wheat-blossom midges
  97. Studies of fluctuations in insect populations XIII An improved method of ascertaining the correct date to sample when assessing larval infestations of the wheat-blossom midges
  98. An analysis of captures of hemerobiidae am) chryso-pidae in suction traps at Rothamsted, July, 1949
  99. Work in progress at Rothamsted
  100. The characteristics of soil. A review of some recent developments
  101. Modern developments in soil science
  102. Some bioclimatic observations in the Egyptian desert
  103. Sequences of wet and of dry days considered in relation to the logarithmic series
  104. The relative values of alternative liming materials
  105. Committee on nutrition problems in forest nurseries: summary report on 1951 experiments
  106. Experiments on the manuring of peas
  107. Sub-committee on nutrition problems in forest nurseries Summary Report on 1950 experiments
  108. The action of the proventriculus of the worker honeybee, Apis mellifera L
  109. Rothamsted experiments on field beans. Part II. Disease studies on field beans
  110. Ultraviolet injury to higher plants counteracted by visible light
  111. The nature and behaviour of inhibitors of plant viruses produced by Trichothecium roseum link
  112. Principles governing the amount of experimentation in developmental work
  113. George Udny Yule 1871-1951 : Obituary Notices
  114. Analise de uma experincia de rotacao
  115. The physical bases of irrigation control
  116. Experiments on irrigation of sugar beet
  117. The behaviour of worker honeybees at the hive entrance
  118. An automatic volumetric spore trap
  119. The changing numbers of aphis fabae scop., flying at crop level, in relation to current weather and to the population on the crop
  120. The effect of aphis fabae scop. on the growth and yield of field beans in a garden plot