Apart from these exceptions, the common law at the outset denied legal effect to the assignment. It was not a valuable consideration which would support a promise by the assignee to the assignor,1 unless the assignor had covenanted expressly that the money due on the claim which was assigned should be paid to the assignee, either by the assignor or by the original debtor.2 The assignor could release the debt after the assignment.3 The assignee had no interest in the debt assigned, and accordingly his promise to forbear was no consideration for a promise made to him by the debtor to pay the debt to the assignee in consideration of such forbearance.4 On the bankruptcy of the assignor, the interest in the debt passed to his trustee in bankruptcy as against the assignee.5 The action upon the debt must be brought in the name of the assignor,6 and the assignor could interfere in such action if he chose.7