149. Extent of disentailment by mortgage.

149.     Extent of disentailment by mortgage.

Where a tenant in tail mortgages the land entailed under his special statutory powers1, the entail is in general wholly barred in equity to the extent of the interest created by the mortgage, despite any intention to the contrary expressed or implied in the mortgage deed2; but, if the mortgage only creates an interest pour autre vie or a term of years or a charge unsecured by a term of years or greater interest, the entail is barred only so far as is necessary to give effect to the