The clerical service for thus recording the title requires the payment of a fee, which should accompany the title-page when transmitted to the Copyright Office. The fee for this, as fixed by law, is 50 cents in the case of the title of a book whose author is a citizen of the United States, and $1 in the case of a book whose author is not an American but is a citizen or subject of some country to whose citizens the privilege of copyright in the United States has been extended, under the provisions of the Act of March 3, 1891. If a copy of the record thus made of the title (commonly called a certificate) is desired, an additional fee of 50 cents is required in all cases. In order to have this essential record of title properly made, in the form exactly prescribed by the statute, it is necessary to furnish the Copyright Office with certain information, namely: _a._ The name of the claimant of the copyright. (This should be the real name of the person, not a _nom de plume_ or pseudonym.) _b._ Whether copyright is claimed by applicant as the "author" or the "proprietor" of the book. _c._ The nationality or citizenship of the _author_ of the book. (This is required to determine whether the book is by an author who is privileged to copyright protection in this country, and, also, the amount of the fee to be charged for recording the title.) _d._ The application should state that the title-page is the title of a "book." _e._ A statement should be made that the book is or will be "printed from type set within the limits of the United States." The second prerequisite to copyright protection is the deposit in the Copyright Office of two copies of the book whose title-page has been recorded. These copies must be printed from "type set within the limits of the United States," and the deposit must be made "not later than the day of publication thereof, in this or any foreign country." The stipulation as to American typesetting applies to works by American authors as well as to those written by foreign authors. The statute provides, as regards both the printed title and the printed copies, that the articles are to be delivered at the office of the Librarian of Congress, or "deposited in the mail, within the United States, addressed to the Librarian of Congress, at Washington, D. C." Just what would be held to have been secured under the latter provision in case the deposit in the mail were made and the book failed to reach the Copyright Office has not been determined by judicial decision. The law provides for the giving of a receipt by the postmaster in the case of the title and the copies, if such receipt is requested.