In 1867 the library of the Smithsonian became a part of the Library of Congress. The act of 1870 provided two copies, both to be addressed to the Library of Congress. But by that same act of 1870 the Library of Congress became the office of registration for copyright; and from that time, and because the failure to deposit not later than the date of publication actually voided the copyright, an impression has grown up that the articles deposited are an integral part of the record of registration, and have a peculiar sanctity as such. The fact of the deposit has been and will be an integral part of the record, and in times past this could most readily be proved by the copies themselves, the law providing neither for a certificate to the claimant admitting the receipt of the deposit nor an entry in the official record showing it. But hereafter the fact of deposit will be proved by the certificate itself. There is an impression--a very natural one, too--that the copies deposited are necessary evidence of the thing copyrighted, and essential as such in litigation. Now, during the past thirty-six years the copyright office has record or memory of only four cases in which articles deposited have been summoned into court, and an authority on copyright litigations remarks that in three of these he is quite certain that the reason was a fanciful one, and in the fourth he did not see any necessity for it. For the matter of that, however, there is little prospect that any article of sufficient importance to be a subject of litigation would be deliberately destroyed, or would fail to be drawn into the permanent collections of the Library--at least one copy of it. Mr. Chairman, having indicated something of what the bill is, let me say a word as to what it is not, in intention. First. It is not an attempt to codify the common law. The conservative bar was very fearful that it would be. Even more than the present statutes, it leaves to the courts to determine the meaning and extent of terms already construed by the courts. It does this even in cases where the temptation to define was considerable and where foreign statutes attempt a definition. For instance, Who is an author? What is publication in the case of works not reproduced in copies for sale? What is fair use? Now, many such definitions were proposed and lengthily discussed, and omitted because they did not stand the test of the best expert opinion of the most conservative advisers of the conference, particularly the committees of the bar associations. Second. The bill does not, in intention, attempt to regulate relations between authors and publishers which are or may be matter of private contract.