delivered the opinion of the court.
The district court rendered judgment against appellant on nine out of eleven distinct causes of action set up in a single complaint and consisting of a series of small accounts that, with a single exception, had been assigned to plaintiff.
It is urged that the district court erred—
“1st. In overruling a demurrer to each of the counts of the complaint on the ground that they did not allege acts sufficient to constitute a good cause of action.
“2nd. In overruling a demurrer to the 11th count on the ground that the complaint was ambiguous.
“3rd. In admitting in evidence two deeds to prove the capacity alleged in the 9th count.
*331“4th. In holding that there was sufficient consideration in the eight causes of action in which the assignment of the credit was made.
“5th. In construing erroneously section 1183 of the Civil Code and section 108 of the Law of Evidence.
‘ ‘ 6th. In' sustaining the complaint as to the first eight causes of action, or those arising from credits assigned.”
The first assignment of error is based on article 347 of the Code of Commerce, which, reads as follows:
“Art. 347.' — -Commercial credits, which are not negotiable nor payable to the bearer, may be transferred by the creditor without requiring the consent of the debtor, it being sufficient that the transfer be communicated to him.
“The debtor shall be obligated to the new creditor by virtue of the notification, and from the time said transfer is made the only legitimate payment shall be considered that made to the latter.”
It is also suggested that there is no averment as to previous demand by plaintiff, but no authority is cited in support of the proposition that such allegation is necessary, and it is not the province of this court nor has it the leisure to supplement the brief of appellant in any case by independent investigation of doubtful and technical questions of pleading. It was alleged in each separate cause of action that defendant had not paid the specified balance due and owing the respective assignors of plaintiff nor any part thereof, and it was proved that repeated demands had been made by plaintiff’s assignors, and also that defendant had been told that the claims were about to be transferred to Nadal Espinet. He was further informed of such transfer by the summons served upon him in the suit filed apparently on the same day that plaintiff acquired the claims, and there is no suggestion of any payment made to the previous owners of any of the accounts sued upon. Article 347, supra, expressly states that such choses in action may be assigned without the consent of the debtor and the provision for notice to him is primarily for the purpose of protecting him against double payment. In the circumstances we are constrained to hold that the *332failure to allege formal notice of the assignment of the several accounts and previous demand by plaintiff as assignee is not fatal to the complaint.
The eleventh cause of action was an account contracted directly with plaintiff, therein averred to be a mercantile partnership, and the alleged ambiguity is said to consist in the doubt as to whether plaintiff is such partnership or a. private individual engaged in business under his own name. Undoubtedly the capacity in which plaintiff sues should have been alleged, in the introductory paragraph of the complaint, but there is no. allegation whatever of any capacity other than that alleged in the eleventh cause of action,'there is but one plaintiff, and no prejudice is- shown; hence we cannot hold that the' overruling of the demurrer by the trial court amounts to reversible error.
The documents mentioned in the third assignment, the objection made to the admission thereof, the ruling of the court, and the exception taken are set forth in the statement of the case, as follows: :
“Deed No. 68, for the modification and extension of a partnership contract entered into on May 22, 1912, before notary public Rosendo Matienzo Cintrón by José Miguel Romaguera y Roura and Manuel González y Martinez wherein it is set forth that there is in the city of Ponce a mercantile partnership known as José Roma-guera & Co. of which José Romaguera is the managing partner with the right to use the signature of the firm, Manuel González, the silent partner, Miguel Romaguera, the general attorney-in-fact, which partnership contract would expire on July 1, 1912, the same being hereby extended for four years more to expire, on July 1, 1916.
“Deed No. 19 executed in Ponce on March 3, 1913, before Notary Nemesio R. Canales by the same parties, José and Miguel Romaguera y Roura and Manuel González y Martinez, in which after referring to the former deed of extension and those which preceded it for the constitution of the firm, they make the following agreement:
“ ‘1st. José and Miguel Romaguera y Roura and Manuel Gon-zález y Martinez as the only partners of the firm of José Roma-guera & Co., hereby declare that- the same is totally dissolved and .that deeds Nos. 257, 240 and 168 of July 18, 1908, July 1, 1910, and *333May 22, 1912, executed before notary Rosendo Matienzo Cintron are without force or effect, and hence all the partners by common consent declare the firm of José Romaguera & Co. to be in a state of liquidation from this date.
“ ‘2nd. The partners agree to appoint José Romaguera liquidator of José Romaguera & Co. upon whom they confer all the powers that under the law correspond to liquidators, he being required to proceed immediately to realize on the property of the partnership in order to extinguish the liabilities and cover the capital contributed to the firm in accordance with the provisions of the Code of Commerce and without any intervention of the other partners.’
“The defendant objected to the admission of the said documents because the object is to prove by them the first allegation of the ninth cause of action which is as follows:
“■ ‘José Romaguera & Co. is a mercantile partnership established in the city of Ponce where it has an establishment for the manufacture and sale of liquors.’
“That the firm is dissolved and in liquidation, and that José Romaguera was the liquidator thereof on the date of the complaint.
“The court admits the deeds because it understands that the partnership exists, the liquidation being a status of the partnership. The defendant excepts.”
Inasmuch, as appellant in his brief merely restates the ground of his exception in more words without citing any authority contrary to the ruling of the court below or showing any surprise or prejudice or other sound reason for reversal upon this ground, we hold the variance to be immaterial and the error committed, if any, to be harmless.
The fourth assignment goes to a question of fact squarely determined by the court below. It is true that the evidence in this regard is not very satisfactory, but the consideration in such matters is presumed to exist until the contrary appears, and the burden was upon defendant to show the fraud, simulation and want of consideration set up in his answer. He introduced no evidence at all but relied wholly upon cross-examination in this regard, and we find no such manifest error on the part of the trial judge in weighing the evidence adduced as to require a reversal.
*334A discussion in detail of .the argument of appellant, in support of the fifth and sixth assignments, in so far as the same is not already disposed of, either directly or by implication and analogy, in what we have' said above, would serve no useful purpose. '
The judgment appealed from must be
Affirmed.
Chief Justice Hernandez and Justices Wolf, del Toro and Aldrey concurred..