S. O. Perkins

1877

• Soil survey of Brunswick county, North Carolina
• Soil survey of Calvert County, Maryland
• Soil survey of Cherokee County, North Carolina
• Soil survey of Greene County, North Carolina
• Soil survey of Kalamazoo County, Michigan
• Soil survey of Lee county, North Carolina
• Soil survey of Martin county, North Carolina
• Soil survey of Queen Annes County, Maryland
• Soil survey of Talbot County, Maryland
• Soil survey, Camden and Currituck Counties, North Carolina
• Soil survey, Clay County, North Carolina
• Soil survey, Henderson county, North Carolina