Source: Luigi Piccoli, LE SERVITÙ TEORICO-PRATICHE SECONDO IL DIRITTO ROMANO (3rd ed.; Bologna: Presso Turchi, Veroli e comp., 1826), call no.: RL 46 P58. This "tree" diagrams servitudes in Roman law, which are equivalent to easements in Anglo-American property law.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/29570076@N06">Yale Law Library</a> from New Haven, CT, USA
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/29570076@N06/3793171918/">Arbor servitutum, 1826</a>