130 



SMITHSONIAN INSTITUTION 



Fig. 117. — A view of the sand dunes on Mustang Island off the coast of 

 Texas near Corpus Christi. The dominant grass on the dunes is Vuiola 

 paniculata L. 



Fig. 118. — Mt. Wilson. San Miguel Mountains, Colorado. The scenery in 

 this region is less marred by forest fires and lumbering operations than is 

 often the case in this state. 



