Where a broker's contract for commissions provided that the amount sued for was payable out of the last cash payment, such payment constituted a condition precedent to any liability on defendant's part to pay such amount to plaintiff; and hence an allegation in plaintiff's complaint that the sum sued for "became due" on a given date was not a sufficient allegation that the condition precedent had happened. Nekarda v. Pres-berger, 107 N. Y. S. 897, 123 App. Div. 418.