In Wise v. Yunker, 223 Mich. 203; 193 N.W. 890 (1923), the affidavit in question was not, as here, completely devoid of a jurat. In Wise, the notary dated the document and affixed the date her commission expired, but neglected to sign it. Wise, 223 Mich. at 205-206. The Supreme Court found the affidavit sufficient because the date and the notary's commission constituted evidence that the declarant swore to the information provided within the affidavit. Wise, 223 Mich. at 206-208.