150. Every denial of a signature to a bill of exchange, promissory note or other private writing or document upon which any claim is founded, must be accompanied with an affidavit of the party making the denial, or of some person acting as his or her agent or clerk and cognizant of the facts in such capacity, that such instrument or some material part thereof is not genuine, or that his or her signature or some other on the document is forged, or, in the case of a promissory note or bill of exchange, that the necessary protest, notice and service have not been regularly made, stating in what the irregularity consists; without prejudice however to the recourse of such party by improbation.