It is argued that, as the affidavit of defense admitted a certain sum to be due, the plaintiff should have proceeded under the Act of May 31, 1893, P. L. 185, and that the Act of July 15, 1897, P. L. 276, was inapplicable. This position is untenable. Where an affidavit of defense, in an action of assumpsit, admits a certain part of the claim to be due, and presents no sufficient defense to another part of the claim, it is regular, under the act of 1897, for the court to grant judgment for the aggregate of both portions, with leave to the plaintiff to proceed for the recovery of the balance of the claim as to which the court shall adjudge the affidavit of defense to be sufficient. Thus, where the plaintiff claims, and prima facie is entitled to, interest on the items of his claim from a certain date, and the affidavit of defense admits some of the items and sets up no sufficient defense to the claim of interest on those items, it is proper for the court to adjudge the affidavit of defense insufficient both as to the aggregate of those items and the interest thereon, and to enter judgment accordingly. Here, the defendant by its affidavit admitted certain items of the claim, aggregating $627-50, but claimed that it was not liable for interest *449and costs because it “tendered to the Barber Asphalt Paving Company, successor of the plaintiff company, the said sum of $627.50, being the amount due by the defendant company to the Vulcanite Paving Company,” etc. The affidavit was plainly defective in its averment of tender, because, first, it did not set forth the-facts necessary to show that it was made to the proper person; secondly, it did not set forth facts as to time and manner from which it could be determined with certainty-whether, even if made to the proper person, there had been a tender good in law: Stead v. Randall, 236 Pa. 64. Where it is not clear that an averment of an affidavit of defense is of a fact or of an inference of law from particular faets not set forth, it is bad for uncertainty: Superior National Bank v. Stadelman, 153 Pa. 634; Boal v. Citizens’ Natural Gas Co., 23 Pa. Superior Ct. 339; International Savings & Trust Co. v. Stenger, 31 Pa. Superior Ct. 294. The averment upon which the defendant relied to prevent the running of interest and liability for costs was open to this objection, and properly was adjudged insufficient upon that ground.

The judgment is affirmed.