--- Begin Forwarded Message --- Date: Tue, 8 Oct 2002 09:22:22 -0400 From: "Mark A. Thomas" <[log in to unmask]> Subject: AMS edition numbers Sender: "Mark A. Thomas" <[log in to unmask]> I want to make absolutely sure about the edition designations on old AMS maps, especially those with two parts, as in the example below. They often say something like "First Edition - AMS 3" I used to think that "3" was a print run. For instance, I assumed that "First Edition - AMS 1" has the same content as "First Edition - AMS 3" (except for margin details and obvious overprinting of grid lines, etc.). The dates seem to imply this. For instance on AMS 1102, both of above examples on one sheet say 1943, but the AMS 1 example also says 4-44 and the AMS 3 says 6-46. Unfortunately, I saw substantive differences (like in the names of towns, or towns that were identified on one but not the other) on sheets in AMS 1102 that were designated as above, so my guess may be wrong. But, it doesn't seem to make sense for both "first" and "3" to refer to editions. Is there some sort of major and minor revision concept going on here? I've always figured the "AMS" in the above designation refers to the provenance of the cartography. For instance, an AMS map that says "First Edition - GSGS 4" is a reprint of a GSGS map. Sometimes the sheets just say (I think) "AMS 3" or "AMS 1" What would that indicate? There are other variations as well. Any detailed explanation is welcome. Thanks, Mark ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Mark Thomas / [log in to unmask] / 919-660-5853, fax:919-684-2855 Economics, Geology, Geography Bibliographer Map and GIS Librarian / Public Documents and Maps Department 025 Perkins Library / Duke University, Durham, NC 27708-0177 --- End Forwarded Message ---