SUKFACE DEPOSITS. 93 



absorbent, expanding and contracting to a remarkable extent under the 

 alternate influence of moisture and dryness. It retains a good deal 

 of moisture, and therefore requires less irrigation than other soils. 

 It occurs more or less continuously along the Wardha, bordering both 

 sides of the river for some miles in breadth. 



The brown soils are more sandy, as a rule, than the black soil, and 

 contain more kankar. They constitute a large portion of the area marked 

 as alluvium. Red soils are met with here and there. They have not been 

 washed into their present positions, but are due to the disintegration of 

 underlying clays. 



( 93 ) 



