A partnership may, in the absence of statutory provision, transact business under an arbitrary or fictitious name.1 Some statutes forbid a partnership to use a name which will deceive the general public as to the identity of the members of the partnership.2 Under many of the statutes allowing a firm to sue in its firm name it must file a certificate with some specified officer showing the true names of the partners.3 This statute does not apply to a firm whose name shows the surnames of its partners,4 or to a foreign partnership which has no place of doing business within the state.5 A partnership having a fictitious name must file a new certificate on a change in membership, or it cannot take a cognovit judgment,6