How to keep a war map

Title (Dublin Core): How to keep a war map
Subject (Dublin Core): en Technology; en Other
Article Title and/or Image Caption (Dublin Core): How to Keep a War Map
extracted text (Extract Text): FIRST get a good map, preferably in black and white,

with light blue for the rivers. A recent map prepared
by the National Geographic Society can be purchased for one
dollar. Then, procure some flat-headed colored pins. Next,
take some highly colored floss or worsted—green, for
example—and establish your battle-line by the morning
newspaper.

Make the whole line uniform green, with no attempt to
differentiate between the different forces.

‘When there is occasion to change the map, select bright
yellow to establish the new line of advance, placing the pins
in the names of the places captured and letting the yellow
floss be guided from the points on the green line where the
change has taken place.
Language (Dublin Core): eng
Temporal Coverage (Dublin Core): Interwar period
Date Issued (Dublin Core): 1919-01
Is Part Of (Dublin Core): Popular Science Monthly, v. 94, n. 1, 1919
pages (Bibliographic Ontology): 54
Rights (Dublin Core): Public domain (Google digitized)
Source (Dublin Core): Google Books
References (Dublin Core): National Geographic Society
Archived by (Dublin Core): Davide Donà; Marco Bortolami (editor)
Spatial Coverage (Dublin Core): United States of America