----------------------------Original message---------------------------- Dear Maps-L Readers: This morning I received a request, second hand from reference. A patron is trying to locate a type of map. The second hand informatin is this: A map(s) of the Earth showing how certain parts f the earth are lighted at specific times. It didn't specify whether the time is seasonally or daily, etc.. Does anyone have a lead as to where I can locate this type of map? Thanks in advance, Mary Yarrington Map Collection Supervisor UWEC, Eau Cllaire, WI :-) "[log in to unmask]"