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for J for after the destruction of these animals, 

 whether by water or otherwise, their remains 

 could not have, been preserved in any other 

 situation, because in no ether situation could 

 they be so well excluded from the air. 



On digging into these morasses you gene- 

 rally have to remove from one to two feet of 

 peat or turf: you then enter on a stratum, 

 from one to two feet thick, of what the far- 

 mers call the yellow marlc, composed of vege- 

 table earth intermixed with long yellow roots : 

 next the grey marie, which resembles wet ashes, 

 to the further depth of two feet ; and finally a 

 bed of decayed shells, which they call shell- 

 marle, the upper surface of which forms a 

 horizontal line across the morass, consequently 

 it is thicker at the center than at the edges: 

 under this, forming the bottom of the poiid or 

 morass, is found travel and slate coverino: a 

 thick stratum of clay. It was in the white 

 and grey marie the bones were generally found; 

 those in the white in the highest preservation, 

 less £0 in the rrey, and where an end hap- 

 pened to rise into th.e yellow srratum it was 

 proportionally decayed : one cause of this 



