If a broker or other agent transfer bonds by delivery, without disclosing who is his principal, he is, himself, to be regarded as the principal, and is responsible to refund the money paid, if the bonds are declared null and void. Herwig v. Richardson, 44 La. Ann. 703, 11 So. 135. Compare Cooper v. Illinois Central R. Co., 57 N. Y. S. 925, 38 App. Div. 22. See also Sec. 601.