1906

  1. The amount and composition of the drainage through unmanured and uncropped land, Barnfield, Rothamsted
  2. How long does lime last in the soil?
  3. XXVII - The determination of available plant food in soil by the use of weak acid solvents. Part II
  4. On the function of silica in the nutrition of cereals Part I
  5. LXIV - The estimation of carbon in soils and kindred substances