The collecting bank may be the bank upon which the paper is drawn or another bank. The duties of the banks in such cases are not wholly similar. The collecting bank may itself collect the paper or may send the paper to another bank for collection. It may be guilty, if itself doing the act of collecting, of negligence in presenting the paper or in what it takes for payment, or in taking proper steps to hold the parties liable upon the paper. If the bank, in collecting, finds it necessary to employ a notary, the notary may be guilty of negligence. The bank to which it sends the paper may be guilty of negligence in collecting, or after collecting may hold the proceeds as against the first bank, or may become insolvent. In all such cases the rules applicable will be examined, and then the forms of action upon such negligence and the measure of recovery will be set forth so far as the decisions upon banking cases are applicable.