1. On The Occurrence Of The Partheno‐Genetic And Sexual Forms In Aphis Bumicis L., With Special Reference To The Influence Of Environmental Factors
  2. The internal condition of the host plant in relation to insect attack, with special reference to the influence of pyridine Part I The nature of the problems involved
  3. Can cultivation costs be reduced?
  4. Science of the year - 1929 The biological sciences
  5. Variation in fungi and bacteria
  6. Ueber die Geschwindigkeitsfunktion der Viskosität disperser Systeme
  7. Plastometric studies of soil and clay pastes
  8. The “inoculation” of lucerne (Medicago sativa, L.) in Great Britain
  9. The influence of the number of nodule bacteria applied to the seed upon nodule formation in legumes
  10. The effect of fresh straw on the growth of certain legumes
  11. Button Top of basket willows
  12. Unisexual families in Rhabdophaga heterobia H. Lw.(Cecidomyidae, Diptera). Ent
  13. Gall midges (dipt., Cecidomyidae) as enemies of aphids
  14. Two gall midges (Cecidomyidae) found in stored products
  15. Soils and fertilisers
  16. An error in soil reaction determinations by the quinhydrone method
  17. Note on a simple two compartment electrodialysis cell for the determina tion of exchangeable bases
  18. The flow of clay pastes through narrow tubes
  19. A note on some experiments dealing with sulphur treatment of a soil and its effect on wheat yield
  20. The phosphate requirement of barley at different periods of growth
  21. Fertilizer trials in 1929
  22. Note on the X2 test for goodness of fit
  23. On the frequency distribution of any number of deviates from the mean of a sample from a normal population and the partial correlations between them
  24. A study in sampling technique: the effect of artificial fertilisers on the yield of potatoes
  25. A problem in combinatorial analysis giving the distribution of certain moment statistics
  26. Fertilizer trials on the ordinary farm
  27. The variability of species in the Lepidoptera, with reference to abundance and sex
  28. Tests of significance in harmonic analysis
  29. Studies in crop variation: VI. Experiments on the response of the potato to potash and nitrogen
  30. The sieve of Eratosthenes
  31. A preliminary note on the effect of sodium silicate in increasing the yield of barley