12 



PROTECTION AGAINST MAN. 



straight as possible, in order to render the estates more 

 valuable, and to keep down the cost of demarcating and 

 maintaining the boundary. This maxim should not, however, 

 be carried too far, when by so doing, boundary points would 

 be situated in impassable places, such as swamps, etc. 



All boundary points which have been finally settled should 

 at once be marked by durable posts, and by digging narrow 

 trenches in the direction of the boundary lines (Fig. 1), or in 

 a circle round each post (Fig. 2). During the progress of the 

 boundary settlement, the surveyor should make a rough plan 

 of the boundary line, and keep notes of the evidence brought 

 before him. 



Fig. 3. — Partition of an island by the line MM, mid-stream, between two adjacent 

 owners, A. and B., into two parts A, B^. 



Fig. 4. — Partition of a river-side accretion C, by the line a b e. 



3. Demarcation of Boundaries. 



The demarcation of boundaries is effected by natural, arti- 

 ficial, or mixed boundaries. 



Property boundaries require to be more permanently marked 

 than administrative boundaries. 



