In an action by a broker for commissions for procuring a purchaser, the affirmative answer of the purchaser procured by the broker to the question as to whether he was ready, willing and able to comply with the terms of the sale, was not objectionable as the opinion of a witness. Clark v. Wilson, 91 S. W. 627, 41 Tex. Civ App. 450. Compare N. W. Packing Co. v. Whitney (Cal. App. '07), 89 P. 981.