delivered the opinion of the court.

By a deed executed in Spain the petitioner acquired certain properties located in Lajas, Puerto Rico, belonging to Pantaleona Melón Saenz. The deed adequately described one of the properties but not the others because the data for their description was not available. The deed recited that the properties being conveyed consisted of all the properties owned by the vendor in Lajas which she had acquired by inheritance from her cousin, Santiago Saenz Martinez.

*875The petitioner presented the said deed to the registrar for recordation, accompanying it with another in which the attorney-in-fact of the petitioner described the said other properties owned by the vendor in Lajas. The registrar refused to inscribe the deed for two reasons. The first was that the properties which the petitioner was attempting to record had been previously annotated in favor of the heir of the predecessor in interest. It is unnecessary for us to examine this first ground, as a certificate of the registrar has been filed reciting that the annotation has expired.

The second ground of the registrar was that the deed does not describe the properties and that the explanatory deed executed by the attorney-in-fact of the petitioner was not sufficient. The petitioner thereupon submitted to the registrar a deed executed by the attorney-in-fact of Panta-leona Melón entitled Notarial Act for Inventory of the Properties Inherited by Pantaleona Melón by Will of Santiago Saenz Martinez. This document described the properties inherited by the vendor which were located in Lajas. The registrar ratified his previous decision, and the petitioner filed this administrative appeal.

The registrar relies on Articles 9 and 21 of the Mortgage Law and Article 87 of the Regulations. But it is precisely Articles 21 and 87 which authorize the registrar, once it is established by authentic documents exactly which properties are covered by the deed, to make the corresponding inscriptions in the registry.1

*876Morell, commenting on Article 21 of the Spanish Mortgage Law, essentially the same as ours, says at p. 428 of vol. 2 of his Commentaries on the Mortgage Law, 1917 e.d.:

“In effect; one speaks in general of universal and singular documents of title, and also in general there is required only that, with some other authentic document, there be found included in them the properties to be inscribed. A sells B farms he acquired from G in a deed of a certain date, before a certain notary, without describing them. The text of the second paragraph of article 21 permits the use of the said deed of sale to show which are the farms which were sold and for which inscription is being requested.”

Galindo and Escosura are of the same opinion in 2 Commentaries on Mortgage Legislation 222:

. But even conceding that Article 28 of the Regulations said what the resolution affirms, it is not applicable as a general doctrine: against that we have, in addition to what number I of Article 64 of the same Regulation provides, concerning the circumstances which annotations have to contain, the clear and absolute precept of Article 21 of the Mortgage Law, according to which, although the universal or singular documents of title do not describe the properties, they may be inscribed if by another authentic document it is established that they are included in the said documents of title: The Resolution of December 6, 1864, holding that it is sufficient that the boundaries, appear in an authentic document, either prior or subsequent to that being inscribed, or in a certificate of the Treasurer, if the properties involved are transferred by him, and the Resolution of June 8, 1876, holding that the lack of a description or determination of the properties, may be supplied by presenting other documents in which it appears.”

*877As the document executed by the attorney-in-fact of the vendor was an authentic document in which the properties are described, and as the properties are recorded in the name of the one who conveyed them, the registrar erred in not inscribing the deed herein.