Civil Code (Cap. 16), article 700

700. (1) Where the testator shall have bequeathed as belonging to him any determinate thing, or any thing included in a given genus or species, the legacy shall have no effect, if the thing is not found to exist in the estate of the testator at the time of his death. (2) If the thing is found to exist in the estate of the testator at the time of his death, but not in the quantity specified in the will, the legacy shall have effect to the extent of the quantity so e xisting. Legacy of thing or quantity to be taken from a specified place.