National Geographic : 1921 Sep
237 OUR GREATEST NATIONAL MONUMENT A BONFIRE KINDLED BY WATER (SIEE PAGE 250) One of the fumaroles was so hot and dry that shavings burst into flame after being plunged for a moment into its hot vapor. Since this consisted of almost pure steam-that is to say, water-what we really did was to kindle a fire by poking a stick into the water. Temperature measurements by the geophysicists showed that it was 645° C. (nearly 12000 F.) . Photographs by R. F. Griggs FUMAROLES AT THE CORNER OF IAKED MOUNTAIN We all wanted to come down at night and see if the throat of the funarole shown in the upper illustration was red hot, but no one cared to try to find his way around in the dark.