National Geographic : 1899 Oct
THE RELATION OF FORESTS AND FOREST FIRES 399 of square miles in the Rocky Mountain region by the action of fire. It is a fact that this thin-barked tree, which succumbs with the utmost readiness to fire, is gaining ground by the action of its enemy, replacing over great areas thick-barked species like FIRE-SCARRED SEEDLING OF LONGLEAF PINE--SHOWING PROTECTING NATURAL GROWTH OF ITS NEEDLES the red fir and the western larch. The device to which this curious result is due is similar to that of Pinusattenuata,to which John Muir long since called attention.* It consists in the hoard ing for several years of the ripe seeds in the cones. Fire rarely *See The Mountains of California, p. 151.