The Notebooks of Leonardo Da Vinci Complete


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Small, lofty, straggling, thick, that is as to foliage, dark, light,  
russet, branched at the top; some directed towards the eye, some  
downwards; with white stems; this transparent in the air, that not;  
some standing close together, some scattered.  
The relative thickness of the branches to the trunk (393--396).  
3
94.  
All the branches of a tree at every stage of its height when put  
together are equal in thickness to the trunk [below them].  
All the branches of a water [course] at every stage of its course,  
if they are of equal rapidity, are equal to the body of the main  
stream.  
3
95.  
Every year when the boughs of a plant [or tree] have made an end of  
maturing their growth, they will have made, when put together, a  
thickness equal to that of the main stem; and at every stage of its  
ramification you will find the thickness of the said main stem; as:  
i k, g h, e f, c d, a b, will always be equal to each  
other; unless the tree is pollard--if so the rule does not hold  
good.  
287  


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