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  1. Further experiments on the effect of removing the soluble humus from a soil on its productiveness
  2. A note on the availability of organic nitrogen compounds in pot experiments
  3. Some aspects of the Gezira soil problems (and analysis of the influence of rainfall on yield of cotton at the Gezira Research Farm)
  4. A source of error in the mechanical analysis of sediments by continuous weighing
  5. Studies on soil reaction III The determination of the hydrogenion concentration of soil suspensions by means of the hydrogen electrode
  6. Studies on soil reaction IV The soil reaction of continuously manured plots at Rothamsted and Woburn
  7. Studies on soil reaction V The depth-distribution of reaction and flocculation in continuously manured soils
  8. Studies on soil reaction VI The interaction of acid soils, calcium carbonate and water, in relation to the determination of “lime requirements.”
  9. The relation between the vapour pressure and water content of soils
  10. Experiments on the control of wart disease of potatoes by soil treatment with particular reference to the use of sulphur
  11. Infection experiments with wart disease of potatoes Synchytrium endobioticum (schilb.) perc
  12. The relation between the devlopment, structure and functioning of the nodules on Vicia faba as influenced by the presence or absence of boron in the nutrient medium
  13. Spraying for weed eradication
  14. Theory of statistical estimation
  15. The resemblance between twins, a statistical examination of Lauterbach's measurements
  16. Note on the numerical evaluation of a Bessel function derivative
  17. The influence of rainfall on the yield of wheat at Rothamsted