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HUTTONIAN THEORY. 



415 



tie ground at each undulation, and will flowljr 



ake 



ay towards the depths of 



the lowed fit 



Th 



far as we may prefume to follow a progrefs wh 



the fubjed of immed 



obfe 



IS 



one of the great means by which loofe materials 

 of every kind are tranfported to a great diftance, 

 and fpread out in beds at the bottom of the 

 ocean. 



369. The lighter parts are more eafily carried 

 to great diftances, being adually fufpended in the 

 water, by which they are very gradually and 

 flowly (Jepolited. A remarkable proof of this is 



V 



furnilhed from an obfervation made by Lord 

 Mulgrave, in his voyage to the North Pole. In 

 the latitude of 65^ nearly, and about 250 miles 

 diftant from the neareft land, which was the 



-'. to moderate lii ^^^^ of Norway, he founded with a line of 683 



fathoms, or 4098 feet ; and the lead, when it 

 11 ruck the ground, funk in a foft blue clay to the 



nenefs 



depth of 10 feet*. The tenuity and fi 

 of the mud, which allowed the lead to link fo 

 deep into it, mull have refulted from a depoli- 

 tion of the lighter kinds of earth, which being 

 fufpended in the water, had been carried to a 

 great diftance, and were now without doubt 



forming 



^ 



* 



Phipps's Voyage, p. 74, 141 



