1. English-Grown Pyrethrum as an Insecticide I
  2. The use of the tractor on the average farm
  3. Maximum-and Minimum-Correlation Tables in Comparative Climatology
  4. A statistical analysis of the daily observations of the maximum and minimum thermometers at Rothamsted
  5. The influence of soil heterogeneity on the growth and yield of successive crops
  6. Single value soil properties a study of the significance of certain soil constants
  7. Studies in soil cultivation: IV. A new form of traction dynamometer
  8. The effect of phenol, carbon bisulphide and heat on soil protozoa
  9. On the Economic Status and Bionomics of Sminthurus viridis, Lubb. (Collembola)
  10. Notes on the Feeding Habits of Habrosyne derasa, L. (Lepidoptera)
  11. The bionomics of Apion ulicis Forst (gorse weevil) with special reference to its role in the control of Ulex Europaeus in New Zealand 1
  12. Professor Antonio Berlese
  13. Some comments on the hydrometer method for studying soils
  14. First Commission: Soil mechanics and physics
  15. The micro-flora of the soil
  16. Professor W Johannsen - obituary notice
  17. Science of the year - 1928 The biological sciences
  18. The present position of our knowledge of the distribution and functions of algae in the soil
  19. On the Influence of Light and of Glucose on the Growth of a Soil Alga
  20. The determination of hydrogen ion concentration
  21. The British gall midges of peas
  22. Wheat Blossom Midges (Cecidomyidae, Diptera). Differences between Contarinia tritici (Kirby) and Sitodiplosis mosellana (Gehin)
  23. Soils and fertilisers
  24. Studies in crop variation V The relation between yield and soil nutrients
  25. The contributions of Glinka and the Russian school to the study of soils
  26. A physiological study of varietal differences in plants Part I A study of the comparative yields of barley varieties with different manurings
  27. The toxicity of certain sulphur compounds to Synchytrium endobioticum, the fungus causing wart disease of potatoes
  28. The exact treatment of the multiple correlation coefficient in meteorology and agriculture
  29. On errors in the multiple correlation coefficient due to random sampling
  30. Table of significant values of the multiple correlation coefficient
  31. Sampling errors in the theory of two factors
  32. The generalised product moment distribution in samples from a normal multivariate population
  33. The possible modification of the response of the wild type to recurrent mutations
  34. Two further notes on the origin of dominance
  35. The general sampling distribution of the multiple correlation coefficient
  36. Triplet children in Great Britain and Ireland
  37. Limiting forms of the frequency distribution of the largest or smallest member of a sample
  38. The estimation of linkage from the offspring of selfed heterozygotes
  39. Further note on the capillary forces in an ideal soil
  40. The Effect of Variation in Relative Humidity on Certain Species of Collembola
  41. Revised official British method for mechanical analysis
  42. Revised official methods of mechanical analysis of soils