Boundary Survey (Ireland) Act, 1854

Surveyor shall ascertain Boundaries and mark out the same.

V. When it shall appear to such Boundary Surveyor that the Boundary or Portion of the Boundary (as the Case may be) of any County, Barony, Half Barony, Parish, Townland, or other Division or Denomination of Land is sufficiently ascertained, such Boundary shall be marked out by such Boundary Surveyor or such other Person or Persons as he shall appoint for that Purpose in such substantial and durable Manner as he or they shall think fit and necessary.