How have the courts interpreted the affidavit required by the Ontario Superior Court to order publication of a summons?

Where the affidavit required by the statute for an order of publication of a summons states the evidence or makes an allegation concerning a jurisdictional fact, it will be understood to speak the truth on that point and it will not be presumed that there was other evidence respecting the fact or that the fact was otherwise than as averred. Galpin v. Page, supra. In the present case therefore, the record to which we must resort, and the only record to which we can resort, is the affidavit upon which the order of publication is expressly based. It is therein that the facts essential to the exercise of special jurisdiction must appear. We are limited to this one record because the order of publication in the foreclosure suit is based wholly upon the affidavit of one of counsel for the plaintiff, the court in the order of publication stating as follows: