230 NATURE FOR ITS OWN SAKE 
guished by forms of timber, rock, or grass, but 
these features often undergo odd changes with 
varions lights. The mountain lines against the 
sky change also as we change our position. We 
think we know the profile until we see it from 
Changes of {a different side and in a different light. The 
ae Man’s Head, the Anthony’s Nose, or the Devil’s 
Pipe, outlined by some projecting crag against 
the sky, has nothing to do with mountain in- 
dividuality, though itmay have to do with local 
name and identity. Such fancied marks lose 
all likeness as soon as we move away from a 
certain position. yen the little hills have a 
way of tricking us with different aspects ; and 
every hunter in the Bad Lands who has made 
a mental “blaze” of a butte on his trail knows 
how often he has failed to recognize that butte 
when coming upon it from a new direction. 
Bulk and mass also have some influence 
in marking the mountain, though these, too, 
apparently change as we shift our standing 
ground; and color gives some distinct charac- 
ter, yet this is, perhaps, the most inconstant 
of all mountain features. There are few things 
Changesof |in nature that can show distorted color so 
re well as a mountain-top under sunlight. The 
light is continually bleaching or heightening 
