Service Forester's Handbook

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====== Dichotomous Key for Field Identification of Soil Texture ======
A. Soil when pinched between the thumb and finger, crumbles, will form no 'ribbon.'
  B. Soil squeezed in hand when dry, falls apart readily: squeezed when moist, forms a cast that
  breaks if not handled carefully. Individual sand grains can be readily seen and felt....Sandy Loam
  
  B. Soil, squeezed in hand when dry, forms cast that bears careful handling; squeezed when moist,
  forms a cast that can be handled quite freely without breaking. Soil smooth. Sand grains not readily
  evident.
     C. Soil slightly plastic when moist, but not greasy. Gritty when dry, not floury
     Color brown or dark gray..............Loam.
     
     C. Soil Greasy when moist, floury when dry. On wetting it runs together and puddles. 
     Color light gray or nearly white...........Silt Loam.

Service Forester's Handbook

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