In Bobbs-Merrill Co. v. Straus, 210 U.S. 339 (1908), it was settled that the exclusive right to vend a copyrighted book given by the copyright law did not give to the owner of the copyright and book the right to sell for a price satisfactory to him and by a notice placed in the book fix a price below which it should not be sold by all those who might subsequently acquire it; and that, as such a right was not secured by the copyright law or the remedies which it afforded, a court of the United States had no jurisdiction to afford relief on the contrary theory.