Items where Year is 1931

Number of items: 70.
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  • Studies on soil reaction VII An electrodialysis apparatus for the determination of replaceable bases in soils. (1931) Basu, J. K. picture_as_pdf
  • The practical application of the results of research to the production of malt and wort. (1931) Bishop, L. R.
  • On the anomalous flow of a strong solution of lithium chloride through narrow glass tubes LXXIV. (1931) Blair, G. W. S., Schofield, R. K.
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  • XVII—The distribution of gene ratios for rare mutations. (1931) Aylmer Fisher, Ronald
  • The evolution of dominance. (1931) Aylmer Fisher, Ronald picture_as_pdf
  • Pasteurised and Raw Milk. (1931) Aylmer Fisher, Ronald, Bartlett, S.
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  • Further results of an investigation into the resistance of basket willows to button gall formation. (1931) Barnes, Horace Francis
  • Gall midges (Cecidomyidae) whose larvae prevent seed production in grasses (Gramineae). (1931) Barnes, Horace Francis picture_as_pdf
  • Notes on the parasites of the cabbage aphid, Brevicoryne brassicae L. (1931) Barnes, Horace Francis
  • Observations on gall midges affecting fruit trees. (1931) Barnes, Horace Francis
  • A new predacious gall midge (Dipt., Cecidomyidae). (1931) Barnes, Horace Francis
  • The sex ratio at the time of emergence and the occurrence of unisexual families in the gall midges (Cecidomyidae, Diptera). (1931) Barnes, Horace Francis
  • The biological filtration of dilute sucrose solutions. (1931) Barritt, N. W.
  • The liberation of elementary nitrogen by bacteria. (1931) Barritt, N. W.
  • Biological races in fungi and their significance in evolution. (1931) Brierley, W. B.
  • Science of the year - 1931 The biological sciences. (1931) Brierley, W. B.
    • C
  • The Physiology of Virus Diseases in Plants: II. Further Studies on the movement of mosaic in the Tomato Plant. (1931) Caldwell, J.
  • Studies in Sampling Technique: Cereal Experiments. I. Field Technique. (1931) Clapham, A. R.
  • Studies in Sampling Technique: Cereal Experiments. III. Results and Discussion. (1931) Clapham, A. R.
  • Soils and fertilisers. (1931) Crowther, Edward Mortimer
  • 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). (1931) Crowther, Edward Mortimer, Basu, J. K. picture_as_pdf
  • Winter leaching and the manurial value of green manures and crop residues for winter wheat. (1931) Crowther, Edward Mortimer, Mirchandani, T. J. picture_as_pdf
  • Nitrite formation by soil bacteria, other than Nitrosomonas. (1931) Cutler, D. W., Mukerki, B. K.
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  • The Influence of Manurial Treatment on the Baking Quality of English Wheat. I. A Quality Study of the Rothamsted Broadbalk Wheats. (1931) Fisher, E. A., Jones, C. R. picture_as_pdf
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  • Fungus Diseases in Crops at Rothamsted and Woburn. Observations on Fungous Diseases in Crops on Experimental Plots at Rothamsted and Woburn May-September 1930 (Take-all, Gaeumannomyces graminis var. tritici). (1931) Glynne, Mary Dilys
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  • The soil. (1931) Hall, A. D.
  • Calcium and Hydrogen ion Concentration and the Interfacial Tension of Pyrethrum Extracts (With Four Text-figures). (1931) Hobson, R. P. picture_as_pdf
    • I
  • The efficiency of the correlation coefficient for estimating linkage intensities. (1931) Immer, F. R.
  • Biological control I Insect pests. (1931) Imms, Augustus
  • Biological control II Noxious weeds. (1931) Imms, Augustus
  • Recent research on the wing-venation of insects. (1931) Imms, Augustus
  • Mathematical theorems involved in the analysis of variance. (1931) Irwin, J. O.
  • On the influence of soil temperature on the germination interval of crops. (1931) Irwin, Joseph Oscar picture_as_pdf
  • Precision records in horticulture. (1931) Irwin, Joseph Oscar
    • J
  • The biological oxidation of carbohydrate solutions: Part I. The oxidation of sucrose and ammonia in sectional percolating filters. (1931) Jenkins, S. H.
  • A Comparison of two Agar Media for Counting Soil Micro-Organisms. (1931) Jensen, H. L. picture_as_pdf
  • The Microbiology of Farmyard Manure Decomposition in Soil I. Changes in the Microflora, and their Relation to Nitrification. (1931) Jensen, H. L. picture_as_pdf
  • Laboratory note Dempnstration of peristome teeth movements. (1931) Johnson, C. G.
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  • Possibilities of an international system for the classification of soils. (1931) Lee, L. L.
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  • The Evaluation of Pyrethrum Flowers (Chrysanthemum Cinerariaefolium). (1931) Martin, J. T., Tattersfield, F. picture_as_pdf
  • 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. (1931) Mirchandani, T. J. picture_as_pdf
    • N
  • On the so-called olfactory pores in the Honey Bee Apis mellifera. (1931) Newton, H. C. F.
  • Distribution of agar-liquefying bacteria. (1931) Nicol, H.
  • The Biological Decomposition OF Plant Materials IV The Biochemical Activities on Straws of Some Cellulose‐Decomposing Fungi. (1931) Norman, A. G.
  • Studies on the gums II Tragacanthin—the soluble constituent of gum tragacanth. (1931) Norman, A. G.
  • The biological decomposition of plant materials IV The effect of hydrogen ion concentration on the rate of immobilisation of nitrogen by straw. (1931) Norman, A. G.
    • R
  • The biological decomposition of plant materials V Some factors determining the quantity of nitrogen immobilised during decomposition. (1931) Richards, E. H., Norman, A. G.
  • The use of hydrogen peroxide for estimating humification. (1931) Richardson, H. L.
  • The Changing Outlook in Agriculture. (1931) Russell, E. J.
  • The feeding of Britain. (1931) Russell, Sir Edward
  • The Growth of Cheaper Winter Food for Livestock Rothamsted Conference RC No 10. (1931) Russell, Sir Edward, Stewart, J. G., Annett, H. E., Brunton, W., Stallard, N. R., Faber, H., Watt, W. O., Keeble, J. R., Ward, T. C., Carr, A. C.
    • S
  • The Influence of the Proximity of a Solid Wall on the Consistency of Viscous and Plastic Materials III. (1931) Schofield, R. K., Scott Blair, G. W.
  • The electrical conductivity of aqueous soil suspensions as a measure of soil fertility. (1931) Sen, A., Wright, B. H. picture_as_pdf
  • The Formation Of Intracellular Inclusions In Solanaceous Hosts Infected With Aucuba Mosaic Of Tomato. (1931) Sheffield, Frances
  • Studies in Sampling Technique - Cereal Experiments II A Small-Scale Threshing and Winnowing Machine. (1931) Simpson, T. W. picture_as_pdf
  • Virus diseases of plants. (1931) Smith, J. H.
  • An improved method of maintaining constant humidity in closed chambers. (1931) Stoughton, R. H.
  • The influence of environmental conditions on the development of the angular leaf-spot disease of Cotton. III The Influence Of Air Temperature On Infection. (1931) Stoughton, R. H.
  • The isolation of single bacterial cells. (1931) Stoughton, R. H.
    • T
  • Pyrethrum Flowers - A Quantitative Study Of Their Development. (1931) Tattersfield, F.
  • Extracts of pyrethrum: permanence of toxicity and stability of emulsions. (1931) Tattersfield, F., Hobson, R. P.
  • The cultivation and inoculation of lucerne. (1931) Thornton, H. G.
  • The use of sodium hypobromite for the oxidation of organic matter in the mechanical analysis of soils. (1931) Troell, E.
    • W
  • Coagulation. (1931) Wiegner, G.
  • Some physico-chemical properties of clays. I. Base exchange or ionic exchange. (1931) Wiegner, G.
  • Some physico-chemical properties of clays: II. Hydrogen clay. (1931) Wiegner, G.
  • Notes on frequency-constants. (1931) Wishart, John
  • The analysis of variance illustrated in its application to a complex agricultural experiment on sugar beet. (1931) Wishart, John
  • The mean and second moment coefficient of the multiple correlation coefficient, in samples from a normal population. (1931) Wishart, John, Kondo, T., Elderton, E. M.