Power to enter upon land.

It shall be lawful for any officer exercising any power or

performing any function under this Act and for his servants and workmen—

1. (a) to enter upon and take measurements of any land for any purpose connected with the preparation of record of rights; and
2. (b) to do all other acts necessary for such purpose: Provided that no person shall enter upon any enclosed court or garden attached to a dwelling house (unless with the consent of the occupier thereof) without previously giving such occupier at least seven days notice in writing of his intention to do so.