13 books
Examining and Grading Grains (Classic Reprint)
Pasture, Meadow, and Forage Crops in Nebraska (Classic Reprint)
The Nature and Properties of Soils
Soils, Their Properties and Management - Primary Source Edition
The Nature and Properties of Soils; A College Text of Edaphology
Soils and Fertilizers
Some Relations of Certain Higher Plants to the Formation of Nitrates in Soils Volume 1-5
Lysimeter Experiments; Records for Tanks 1 to 12 During the Years 1910 to 1914 Inclusive Volume 11-12
Liberation of Organic Matter by Roots of Growing Plants
The Principle of Soil Management...
Soils, Their Properties and Management
The Principles of Soil Management
Improving the Quality of Wheat: Thesis (Classic Reprint)