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			The Notebooks of Leonardo Da Vinci
			
			 
			
	
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		969.
    That many springs of salt water are found at great distances from the sea; this might happen because such springs pass through some mine of salt, like that in Hungary where salt is hewn out of vast caverns, just as stone is hewn. 
    [Footnote: The great mine of Wieliczka in Galicia, out of which a million cwt. of rock-salt are annually dug out, extends for 3000 metres from West to East, and 1150 metres from North to South.] 
	 
	
	
		
			
	
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								Chicago: 
								Leonardo da Vinci, "969.," The Notebooks of Leonardo Da Vinci, trans. Richter, Jean Paul, 1847-1937 in  The Notebooks of Leonardo Da Vinci (New York: Dover Publications, Inc., 1970), Original Sources, accessed November 4, 2025, http://www.originalsources.com/Document.aspx?DocID=8NBAJRGGXIVXGNI.
								
							 
							
								MLA: 
								Vinci, Leonardo da. "969." The Notebooks of Leonardo Da Vinci, translted by Richter, Jean Paul, 1847-1937, in  The Notebooks of Leonardo Da Vinci, New York, Dover Publications, Inc., 1970, Original Sources. 4 Nov. 2025. http://www.originalsources.com/Document.aspx?DocID=8NBAJRGGXIVXGNI.
								
							 
							
								Harvard: 
								Vinci, LD, '969.' in The Notebooks of Leonardo Da Vinci, trans. . cited in  1970, The Notebooks of Leonardo Da Vinci, Dover Publications, Inc., New York. Original Sources, retrieved 4 November 2025, from http://www.originalsources.com/Document.aspx?DocID=8NBAJRGGXIVXGNI.
								
							 
						 
					 
				 
				
			
	 
	
 
	
	
	
						
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