1923

  1. Agricultural chemistry and vegetable physiology
  2. A short bio-climatic study in the Egyptian desert
  3. The cotton plant in relation to temperature and rainfall
  4. A froghopper damaging cacao in Panama
  5. Records and problems of insect migration
  6. On the apical growth of fungal hyphae
  7. First report of the experiments on the influence of soil, season, and manuring on the quality and growth of barley
  8. The influence of geographical factors on the agricultural activities of a population
  9. Rothamsted and agricultural science
  10. The possibilities of British agriculture
  11. On the vibration method of obtaining a suspension of the bacteria in a soil sample, developed by CL Whittles
  12. Some preliminary investigations on the relationship of protozoa to soil fertility with special reference to nitrogen fixation
  13. On the larval and pupal stages of Forcipomyia piceus Winn
  14. On the Larval Anatomy of the Gout‐Fly of Barley (Chlorops teniopus Meig.) and two Related Acalyptrate Muscids, with Notes on their Winter Host‐Plants
  15. On the morphology of the head capsule and mouth parts of Chlorops taeniopus (Diptera)
  16. The volume-changes associated with variations of water content in soil
  17. The rate of reproduction in artificial culture of Colpidium colpoda. Part II
  18. The rate of reproduction in artificial culture of Colpidium colpoda
  19. VII.—A quantitative investigation of the bacterial and protozoan population of the soil, with an account of the protozoan fauna
  20. The action of protozoa on bacteria when inoculated into sterile soil
  21. Biological studies of Aphis Rumicis Linn. The penetration of plant tissues and the source of the food supply of aphids I
  22. On the effect of wear on small mesh wire sieves
  23. A critical enquiry into the alleged fixation of nitrogen by green algae
  24. Studies in the varietal immunity of potatoes to wart disease (synchytrium endobioticum schilb., perc.) Part I: the influence of the foliage on the tuber as shown by grafting
  25. The chemical properties of Derris elliptica (tuba root)
  26. A quantitative study of the insecticidal properties of Derris Elliptica (tuber root)
  27. The effect of boric acid and borax on the broad bean and certain other plants
  28. Effect of weight of seed upon the resulting crop
  29. Note on Dr. Burnside's recent paper on errors of observation
  30. Studies in crop variation. II. The manurial response of different potato varieties
  31. XXI —on the dominance ratio