CHAPTER VII 
SLEDGING TO CAPE COLUMBIA — HOT SOLDERING 
IN COLD WEATHER 
I F you will get out your geography and turn 
^ to the map of the Western Hemisphere you 
will be able to follow me. Take the seven- 
tieth meridian, west. It is the major meridian 
of the Western Hemisphere, its northern land 
extremity being Cape Columbia, Grant Land; 
southward it crosses our own Cape Cod and 
the island of Santo Domingo, and runs down 
through the Andes to Cape Horn, the south- 
ern extremity of South America. 
The seventieth meridian was our pathway to 
the Pole, based on the west longitude of 70°. 
Both Professor Marvin and Captain Bartlett 
took their observations at their respective 
f arthests, and at the Pole, where all meridians 
meet, Commander Peary took his elevations of 
the sun, based on the local time of the Colum- 
bian meridian. 
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