367. Creation of party walls subject to reciprocal easements.

Where the circumstances in which the wall was built and the amount of land contributed by each adjoining owner were unknown, it was presumed under the common law that the wall belonged to the owners of the adjoining properties as tenants in common1. The common user by adjoining owners of a party wall separating their properties is prima facie evidence that the wall and the land on which it stands would under the former law have belonged equally to them as tenants in common2. Moreover, before 1926, a conveyance of one house, by the owner of two houses separated