The Notebooks of Leonardo Da Vinci Complete


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[Footnote: 8. tribolatione. In the drawing caltrops may be seen  
lying in the old man's right hand, others are falling and others  
again are shewn on the ground. Similar caltrops are drawn in MS.  
Tri. p. 98 and underneath them, as well as on page 96 the words  
triboli di ferro are written. From the accompanying text it  
appears that they were intended to be scattered on the ground at the  
bottom of ditches to hinder the advance of the enemy. Count Giulio  
Porro who published a short account of the Trivulzio MS. in the  
"Archivio Storico Lombardo", Anno VIII part IV (Dec. 31, 1881) has  
this note on the passages treating of "triboli": "E qui  
aggiungerò che anni sono quando venne fabbricata la nuova  
cavallerizza presso il castello di Milano, ne furono trovati due che  
io ho veduto ed erano precisamente quali si trovano descritti e  
disegnati da Leonardo in questo codice".  
There can therefore be no doubt that this means of defence was in  
general use, whether it were originally Leonardo's invention or not.  
The play on the word "tribolatione", as it occurs in the drawing  
at Oxford, must then have been quite intelligible.]  
[Footnote: 9--22. These lines, in the original, are written on the  
left side of the page and refer to the figure shown on PI. LXI. Next  
to it is placed the group of three figures given in PI. LX No. I.  
Lines 21 and 22, which are written under it, are the only  
explanation given.]  
500  


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