1. Bowen reaction series (8.3 KB)
2. Example pages from Munsell color charts (55.5 KB Clickable image)
3. Classification of soil particles by size (12.2 KB)
4. Textural triangle illustrating the twelve USDA soil classifications (30.7 KB)
5. Textural triangle indicating the relationship of texture and size (25.2 KB)
6. Texture-by-feel flow chart (58.1 KB)
 
 

1. Prominent minerals in soil clay fraction by relative degree of soil development
2. Types and classes of soil structure
3. General properties of humus and associated effects in the soil