1950

  1. A study of enzymes that can break down tobacco-leaf components. 1. Digestive juice of Helix on leaf fibre
  2. Sampling Theory of the Negative Binomial and Logarithmic Series Distributions
  3. Synchronous movement of Aphis fabae Scop.(Hem., Aphididae)
  4. The isolation from normal tobacco leaves of nucleoprotein with some similarity to plant viruses
  5. The formation of nitrates in soil following various crop rotations
  6. The identity of the Swede Midge, with notes on its biology
  7. The nature of precipitated calcium phosphates
  8. Weather and Food - Centenary symposium on meteorology and the community
  9. Diversity as a measurable character of an animal or plant population
  10. Phase coloration in larvae of Lepidoptera
  11. The application of the logarithmic series to the frequency of occurrence of plant species in quadrats
  12. Committee on nutrition problems in forest nurseries: summary report on 1949 experiments
  13. Close cereal cropping. Effect of cultural treatments of wheat on eyespot, lodging, take-all and weeds
  14. The effect of variations in calcium supply, ph value and nitrogen content of nutrient solutions on the response of lettuce and red clover to molybdenum
  15. Some factors affecting the activation of virus preparations made from tobacco leaves infected with a tobacco necrosis virus
  16. Some effects of host-plant nutrition on the multiplication of viruses
  17. Some effects of host nutrition on the susceptibility of plants to infection by certain viruses
  18. The mechanical transmission and some properties of potato paracrinkle virus
  19. Some effects of freezing in the leaf, and of citrate in vitro, on the infectivity of a tobacco necrosis virus
  20. Recent applications of biometrical methods in genetics. 1. Experimental techniques in plant improvement
  21. The water balance of the Stour catchment area
  22. Evaporation over the British Isles
  23. The diffusion of moisture through flax seed
  24. A new design of microsyringe tip for the instrumental insemination of queen honey-bees
  25. Agriculture, sampling and operational research
  26. The insecticidal activity of substances related to the pyrethrins .1. The toxicities of 2 synthetic pyrethrin-like esters relative to that of the natural pyrethrins and the significance of the results in the bioassay of closely related compounds
  27. Experiments on the synthesis of the pyrethrins. Part III. Synthesis of dihydrocinerin-I and tetrahydropyrethrin-I; a study of the action of N-bromosuccinimide on 3-methyl-2-n-alkyl (and alkenyl)-cyclopent-2-en-1-ones
  28. Infestation of a bean field by aphis fabae scop. in relation to wind direction
  29. The comparison of suction trap, sticky trap and tow-net for the quantitative sampling of small airborne insects
  30. A suction trap for small airborne insects which automatically segregates the catch into successive hourly samples