What Edison copied was the idea of picking up sound vibrations with a diaphragm and making a permanent record by transferring it to media with a stylus and moving the media under it. Whether it was hill and dale or side to side is insignificant. In fact, for visual examination and comparison, side to side is vastly superior to hill and dale. I cant imagine how hill and dale could be observed or measured visually. RMV ----- Original Message ----- From: "Bob" <bob at lemker.com> To: "'Antique Phonograph List'" <phono-l at oldcrank.org> Sent: Friday, March 28, 2008 11:01 AM Subject: RE: [Phono-L] Fw: EARLIEST recorded human voice? > Am I missing something here.... Was the Scott "recording" hill and dale or > side to side? I'm assuming side to side, so just exactly what did Edison > copy? > Bob > >> > > > > _______________________________________________ > Phono-L mailing list > http://phono-l.oldcrank.org