This document discusses types of endorsements of negotiable instruments under the Negotiable Instruments Act of 1881. It defines a negotiable instrument as a written document containing a promise to pay a certain amount of money to the bearer. Common examples are checks, promissory notes, and bills of exchange. The document outlines five types of endorsements: blank endorsement, special or full endorsement, conditional endorsement, restrictive endorsement, and partial endorsement. It provides examples to illustrate each type of endorsement.