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RT @John_M_Nelson: Stop what you're doing and skim these 1918 USGS instructions for map makers. It's got it all. Confident folksy tone, ins…
RT @John_M_Nelson: Stop what you're doing and skim these 1918 USGS instructions for map makers. It's got it all. Confident folksy tone, ins…
Family.
RT @John_M_Nelson: Stop what you're doing and skim these 1918 USGS instructions for map makers. It's got it all. Confident folksy tone, ins…
RT @John_M_Nelson: Stop what you're doing and skim these 1918 USGS instructions for map makers. It's got it all. Confident folksy tone, ins…