1919

  1. Sugar-cane varieties and froghopper blight
  2. A migration of yellow butterflies (Catopsilia statira) in Trinidad
  3. The reclamation of waste land II The scientific and technical problems
  4. Agricultural chemistry and vegetable physiology
  5. The Use of Ammonium Nitrate as a Fertilizer
  6. The influence of farmyard manure on the clover crop
  7. Soil making
  8. The amount and composition of rain falling at Rothamsted
  9. The effect of potassium salts on the anatomy of Dactylis glomerata
  10. Observations on the Insect Parasites of some Coccidae
  11. Decomposition of cyanamide and dicyanodiamide in the soil 1919
  12. On the decomposition of cellulose by an aerobic organism (Spirochaeta cytophaga, n. sp.).
  13. On the Life History of Wire Worms of the Genus Agriotes, Esch., With Some Notes on that of Athous Haemorrhoidalis, F. Part I
  14. Observations on soil protozoa
  15. A quantitative relation between soil and the soil solution brought out by freezing-point determinations
  16. A note on the capillary rise of water in soils
  17. The uses of weed and wild plants
  18. The distribution of dry matter and nitrogen in the potato tuber Variety : King Edward
  19. Some factors in plant competition