H. J. Wheeler

1861

• Manures and fertilizers
• Syllabus of illustrated lecture on acid soils
• Alfalfa and its culture
• Citrus culture in California
• Citrus culture in Florida
• Cooperative experiments in alfalfa culture
• Field experiments on individual farms
• Further results in a rotation of potatoes, rye and clover
• Manures and fertilizers
• Syllabus of illustrated lecture on acid soils