In a message dated 3/28/2008 9:28:57 A.M. Eastern Daylight Time, rvuill at comcast.net writes: What is the source of your data on Edison and his use of the phonautograph at the metropolitan elevated railroad in 1878. ---------------- who is the source for this date? It seems off by several years. Allen _www.phonobooks.com_ (http://www.phonobooks.com) **************Create a Home Theater Like the Pros. Watch the video on AOL Home. (http://home.aol.com/diy/home-improvement-eric-stromer?video=15&ncid=aolhom00030000000001)