Cap. 16 Art. 1551unless a right on the thing is claimed.

(1) Where, on the contrary, the lessee is disturbed in the enjoyment of the thing in consequence of an action touching a right on the thing let, he may maintain an action for damages against the lessor, if he is entirely deprived of the thing, or for a proportionate abatement of the rent, if he is deprived of only a part of the thing, or if a diminution of the enjoyment of the thing or an inconvenience is caused to him.

(2) It shall, however, be competent to the lessee, even in the latter case, to sue for the dissolution of the contract and for damages, if the part of the thing which is left to him does not serve the purpose for which he had taken the whole thing on lease.