National Geographic : 1918 Jun
Photograph by James Burton ON THE WIRE: NO MAN'S LAND. WHAT SOMETIMES HAPPENS WHEN MAN DEFIES THE WARRING ELEMENTS The sun is munition maker for the sea. Every day it sends to the earth enough heat to melt a cake ofice 5,ooo feet thick ard aslarge asthe State of Massachusetts, as much heat in an hour as the fires of all Christendom have produced in a thousand years. This heat isthe high explosive that puts the fury into the storm that drives the projectile waves to the attack.