it is established. The international copyright which is established in consequence of a convention between any two countries is not an exception to this principle: because the municipal authority of each nation making such convention either speaks directly to its own subjects through the treaty itself, or is exerted in its own limits by some enactment made in pursuance of the international engagement. It was formerly doubtful in England whether copyright, as applied to books, existed at common law, and whether the first statute (8 Anne, с. 19) which undertook to regulate this species of incor- poreal property had taken away the unlimited duration which must have existed at common law if that law recognized any right whatever. The better opinion seems to be that the common law of England, before the statute of Anne, was supposed to admit the exclusive right of an author to multiply copies of his work by printing, and also his capacity to assign that right; for injunctions were granted in equity to protect it. See, on this subject, 4 Burr. 2303, 2408; 2 Bro. P. C. 145; 1 W. Bla. 801; 8 Swans. 673; 2 Ed. Ch. 327; 4 H. L. C. 815; 4 Exch. 145. But it has long been settled that, what- ever the common-law right may have been before the statute, it was taken away by the statute, and that copyright exists only by force of some statu- tory provision; 8 Pet. 591; 17 How. 454; Drone, Copyr. 1; 128 U. S. 244. In America, before the establishment of the con- stitution of the United States, it is doubtful whether there was any copyright at common law in any of the states; 8 Pet. 591. But some of the states had passed laws to secure the rights of authors, and the power to do so was one of their original branches of Bovereignty, afterwards ceded to congress. By art. 1, sect. 8, of the federal constitution, power was given to congress "to promote the progress of science and the useful arts, by securing for limited times to authors and inventors the exclusive right to their respective writings and discoveries." Under this authority, an act of May 31, 1790, secured a copyright in maps, charts, and books; and an act of April 29, 1802, gave a similar protection to en- gravings. The persons entitled to secure a copyright, and what may be protected. The author, in- ventor, designer, or proprietor of any book, map, chart, dramatic or musical composi- tion, engraving, cut, print, or photograph or negative thereof, or of a painting, draw- ing, chromo, statue, statuary, and of models or designs intended to be perfected as works of the fine arts, and the executors, adminis- trators, or assigns of any such person, may secure the sole liberty of printing, reprint- ing, publishing, completing, copying, exe- cuting, finishing, and vending the same; and authors or their assigns may reserve the exclusive right of dramatizing the same ; and, in the case of a dramatic composition, of publicly performing or representing it, etc., or causing it to be performed or repre- sented by others; R. S. § 4952, as amended March 3, 1891, 1 Supp. 951. What may be copyrighted. Private let- ters may be copyrighted by their author; 2 Story 100; and so may abstracts of title; 3 Minn. 94. The compilations of existing material selected from common sources arranged and combined in original and useful form are the subject of a copyright, whether it consists wholly of selected matter or partly of original composition; Drone, Copyr. 152; Thus: (ibid.) dictionaries; 2 Sim. & Stu. 1; gazetteers; 5 Beav. 6; road and guide books; 1 Drew. 353; directories; L. R. 1 Εσ. 697: calendars: 12 Ves. 270; cata- logues; L. R. 18 Eq. 444; mathematical tables; 1 Russ. & Myl. 73; a list of hounds; L. R. 9 Eq. 324; a collection of statistics; L. R. 3 Ed. 718. An abridgment, one not a mere tran- script of the part of an original, may be copyrighted; Drone, Copyr. 158; 1 Story 11; so may a digest; Drone, Copyr. 158. One who prepares reports of decided cases may obtain a valid copyright for the parts of which he is the author or compiler;8 Pet. 591; 2 Blatchf. 165; 13 Wall. 608; but the reporter is not entitled to a coру- right in the opinion of the court, even though he took it down from the lips of the judge, nor in the head notes when pre- pared by the judge; 6 U. S. Pat. Off. Gaz. 932. The translation of a foreign work may be copyrighted, but this will not prevent the publishing of an independent transla- tion of the same work; 6 Biss. 477. The collection and arrangement of ad- vertisements in a trade directory are the subject of copyright, though each single advertisement is not; [1893] 1 Ch. 218. A compilation made from voluminous public documents may be copyrighted; 32 Fed. Rep. 202. A compilation of prices and quo tations on the stock exchange, printed on sheets and issued daily as a newspaper; 78 Law J. 120. A photographer, who makes no charge for photographing an actress in her public character, has the right to secure a copy- right for his own exclusive benefit; 59 Fed. Rep. 32