etc., performed for charitable or educational purposes and not for profit, from authorization or payment, as well as on general principles of construction, it would seem probable that the courts would protect the author of a lecture, drama, or musical composition, except in such instances as a private rendering in a private house, to which there was not public admission and at which no fee was charged or collection taken. The cases bearing on this point are given in the later chapter on dramatic and musical copyright.
Material and
immaterial
propertyThe American code adopts into the law an impor- tant distinction as between the property in the material and the immaterial rights, hitherto somewhat uncertain, in the following provision (sec. 41): "That the copyright is distinct from the property in the material object copyrighted, and the sale, or conveyance, by gift or otherwise, of the material object shall not of itself constitute a transfer of the copyright, nor shall the assignment of the copyright constitute a transfer of the title to the material object; but nothing in this Act shall be deemed to forbid, prevent, or restrict the transfer of any copy of a copyrighted work the possession of which has been lawfully obtained."
The negative provision in this section was inserted in the new copyright law apparently to differentiate it from patent law with the intent of preventing the proprietor of a copyrighted work from controlling the conditions of sale after copies had left his possession. It is doubtful what, if any, effect this provision may have, as the phrase "lawfully obtained" would scarcely have the result of limiting and annulling contractual conditions of sale. The innocent purchase of a stolen book would not relieve the purchaser from the necessity of returning the stolen property to its proper owner, although as far as intent, know-
