previous possession (_usus_) is considered as cancelled.

[30] Apparently _tignum_, as "timber" in English covers material for
construction, includes every kind of material used in buildings and in
vine-yards.

[31] This strip is reserved as a path between any two estates
belonging to different owners. Both owners can walk on the whole
space, but neither owner can claim possession of the strip through
continued usage.

[32] In view of the ancient tradition that the decemvirs sent to
Athens a committee to study the laws written by Solon (c. 639 B.C.--c.
559 B.C.) for the Athenians (Livy, _op. cit_., III. 33. 5), it may not
be out of place to record what Gaius (_ob. c_. 180 A.D.) reports about
marking boundaries (_Digesta_, X. 1. 13): "We must remember in an
action for marking boundaries (_actio finium regundorum_) that we must
not overlook that old provision which was written in a manner after
the pattern of the law which at Athens Solon is said to have given.
For there it is thus: 'If any man erect a rough wall alongside another
man's estate, he must not overstep the boundary; if he build a massive
wall, he must leave one foot to spare; a building, two feet; if he dig
a trench or a hole, he must leave a space equal or about equal in
breadth to depth: if a well, six feet; an olive tree or a fig tree he
must plant nine feet from the other man's property and any other trees
five feet.'"

While there is no evidence whatever that any enactment of the Twelve
Tables reproduced in any form the terms of the Athenian statute here
quoted, still the Twelve Tables may have contained some such