48. Negotiation by indorsement
49. Conversion of indorsement in blank into indorsement in full
52. Indorser who excludes his own liability or makes it conditional
53A. Rights of holder in due course
53. Holder claiming through holder in due course
54. Instrument indorsed in blank
55. Conversion of indorsement in blank into indorsement in full
57. Legal representative cannot by delivery only negotiate instrument indorsed by deceased
57A. Negotiation of instrument of party already liable thereon