delivered the opinion of the court.

Pedro J. Nieves, as assignee of the interests of Julio Maysonet Rivera, filed a complaint in the District Court of San Juan, Section 1, against William E. Mullenhoff, William Ludwig Mullenhoff and Francisco Cadilla, in which he alleged substantially that his assignor had sold to William E. Mullenhoff a property for $2,000, of which the purchaser retained $1,000 to be delivered to the vendor when the latter should have performed a certain act to which he bound himself; that when the purchaser recorded his title in the registry of property the liability for the $1,000 of the purchase price was noted in the record; that when William Ludwig Mullenhoff, the mortgagee- of- the property, recorded his *494mortgage right in the registry it was mentioned in the lien clause of the record that the property was subject to the payment of the said $1,000; that when Francisco M. Cadilla purchased the property at public auction he knew from the registry of property of the lien to which the property was subject. The complaint concluded with the prayer that William E. Mullenhoff he adjudged to pay to the .plaintiff the $1,000 which he owed as a part of the purchase price of the property and that in case he should fail to do so, the plaintiff have preference over the other two defendants to enforce his claim against the property by execution.

The complaint was demurred to by defendants William Ludwig Mullenhoff and Francisco M. Cadilla on the ground, among others, that it did not state facts sufficient to constitute a cause of action, and after a hearing thereon the court.' sustained the demurrer and dismissed the complaint with costs. From that judgment Pedro J. Nieves took che present appeal and he as -well as William Ludwig Mullenhoff and Francisco M. Cadilla appeared before this court each in support of his respective claim.

The complaint does not pray for the rescission or termination of the contract of bargain and sale between William E. Mullenhoff and Julio Maysonet, the plaintiff’s assignor, for the failure of the former to pay to the latter the sum of $1,000, the balance due on the purchase price of the property, therefore the question of whether the termination of the contract would affect the rights of defendants William Ludwig Mullenhoff and Francisco M. Cadilla is not a matter for consideration. The complaint only seeks to recover the said amount from William E. Mullenhoff and it does not appear therefrom that the said amount is .secured by a mortgage duly recorded in the registry of property, but only that it is mentioned in the record.

In considering the case we observe that by the terms of the judgment appealed from it discharges all the defendants from liability for the claims set up in the complaint, inas*495much as it simply dismisses the action, and in order that this-court might reverse the judgment and hold that a cause of action exists, it would be necessary that all the parties whom our judgment could affect should be before us, especially as the action against William Ludwig Mullenhoff and Francisco M. Caclilla being subsidiary to that against William E. Mul-lenhoff and dependent upon the existence of a cause of action against the last named, it would first have to be determined whether he is under obligation to pay the amount claimed, for if not, there would then be no cause of action against any of the defendants. This is the conclusion reached also by the trial judge, for, according to his opinion in the case, the purchaser was not bound to pay the $1,000 sued for. For these reasons and because it does not appear from the transcript of the record that William E. Mullenhoff was served with notice of the appeal, we desired to hear the parties who appeared before us as to whether William E. Mullenhoff is a necessary party to the appeal and whether the appeal ought to be dismissed.

On this point the appellant alleges in his brief that the said -defendant is a necessary party to the suit, that he was summoned by publication and that he was not served with notice of the appeal, but nothing is said as to whether he is a necessary party to the appeal.

As we have stated before, defendant William E. Mullen-hoff is a necessary party to this appeal and should have been served with notice thereof. Failure to comply with this requirement of section 296 of the Code of Civil Procedure is ground for dismissal of the appeal in conformity with section 303 of the same code. Candelas v. Ramírez, 20 P. R. R., 31, and Martínez v. Succession of Laurido, 21 P. R. R., 29.

The appeal should be

Dismissed.