----------------------------Original message----------------------------
Barbara Cox
Marriott Library 444
Univ. of Utah
Salt Lake City
Ah - the same question within one year (although maybe it was
previously on MapHist)!
The difference in value between Washington DC and the Greenwich
meridian is given as 77 degrees 00 minutes 34 seconds west. Source
(e.g.):-
'Table 3: Greenwich longitude of various prime meridians', in:
Cartographic materials: a manual of interpretation for AACR2 /
prepared by the Anglo-American Cataloguin Committee for Cartographic
Materials; Hugo L. P. Stibbe, general ed. - Chicago: American Library
Association [et al.], 1982. - ISBN 0-8389-0363-0
Sincerely
Francis Herbert (Curator of Maps, RGS, London)
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