Nitrogen Manure - Growth of Wheat

Table IX - Sulphuric Acid and Chlorine in Rain-water collected at Rothamsted

Full Minerals After Nitrate, Rothamsted

Amm[oni]a Salts, Rothamsted

Table VII - Nitrogen and Chlorine in Rothamsted Rain, Monthly Averages, 15 Years (1889-1903)

Full Minerals and Ammonium Salts, Rothamsted

Growth of Wheat at Rothamsted, 13 Years, With Increasing Amounts of Nitrogenous Manure

The Composition of the Rothamsted Soil

Table XII - Mechanical Analysis of Rothamsted Soils

Rothamsted [Experimental Station], [Harpenden, Hertfordshire, England]

Full Minerals and Nitrate of Soda, Rothamsted

Sir John Bennet Lawes, Bart., DCL, LLD, FRS

Table X - Rainfall and Drainage at Rothamsted

Plant Food in Soil, Broadback Field, Rothamsted