SUPERFICIAL DEPOSITS IN CUTCH. 385 



mulation of sand, etc., on the east ; hence the distribution of this sand may 

 be assigned to the wind. Nevertheless, much of the dust that is carried by 

 the gales must fall en route and beyond the lee of the hills. Here, however, 

 it will be covered by water during the rains, and the finer particles will come 

 to the surface and form the mud, but the ground as a whole will be fairly 

 firm. 



The amount of deposit from rivers must be comparatively, if not very, 

 small. Doubtless much of the material is brought down in the first instance 

 by the Indus and other rivers, but from the neighbourhood of their mouths 

 this has been blown about in an easterly and northerly direction, and has 

 thus afforded a constantly renewed source of fresh fertility. 



(-Froffi tlie Journal of the Geological Society.') 



