(1) Except as provided by section 12 (1) (f) the Registrar-General shall not record in the Register any notice of trusts whether express, implied, or constructive.
(2) Trusts may be declared by any instrument, which instrument may include as well lands under the provisions of this Act as land which is not under the provisions thereof: Provided that the description of the several parcels of lands contained in such instrument shall sufficiently distinguish the land which is under the provisions of this Act from the land which is not under the provisions thereof, and a duplicate or an attested copy of such instrument may be deposited with the Registrar-General for safe custody and reference but shall not be registered.
(3) When any such instrument or duplicate or attested copy thereof is so lodged, the Registrar-General shall forthwith record in the Register a caveat forbidding the registration of any instrument not in accordance with the trusts and provisions therein declared and contained so far as concerns the land affected by such instrument.