The Notebooks of Leonardo Da Vinci Complete


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8
46.  
Here nature appears with many animals to have been rather a cruel  
stepmother than a mother, and with others not a stepmother, but a  
most tender mother.  
8
47.  
Man and animals are really the passage and the conduit of food, the  
sepulchre of animals and resting place of the dead, one causing the  
death of the other, making themselves the covering for the  
corruption of other dead [bodies].  
On the circulation of the blood (848-850).  
8
48.  
Death in old men, when not from fever, is caused by the veins which  
go from the spleen to the valve of the liver, and which thicken so  
much in the walls that they become closed up and leave no passage  
for the blood that nourishes it.  
[6]The incessant current of the blood through the veins makes these  
veins thicken and become callous, so that at last they close up and  
prevent the passage of the blood.  
696  


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694 695 696 697 698

Quick Jump
1 306 613 919 1225