Negotiable Instruments Law
Section 32. Indorsement must be of entire instrument.- The indorsement must be an indorsement of the entire instrument. An indorsement which purports to transfer to the indorsee a part only of the amount payable, or which purports to transfer the instrument to two or more indorsees severally, does not operate as a negotiation of the instrument. But where the instrument has been paid in part, it may be indorsed as to the residue.