THE ILLUSTRATIONS IN HALF-TONE 



FACING 

 PAGE 



A Pacific soap plant (Chlorogalwn pomeridianum). The 

 bulb, stripped of its fibrous covering, is highly sapona- 

 ceous. The fiber is useful for making coarse brushes 

 and mattresses 174 



Tunas, fruit of a Southwestern cactus. Showing how it is 



opened to secure the meaty pulp 174 



Flowering Dogwood {CornuPi forida, L.) The bark is used 

 in making a medicine similar to quinine, and produces 

 also a red dye used by the Indians 204 



Blood-root (Sangiiwaria Canadensis), valuable as the source 



of a bright red dye 224 



Butternut (Juglans cinerea). The bark is the source of a 

 dye used for the uniforms of Confederate soldiers during 

 the Civil War 240 



Indian woman preparing squaw-weed (Rhus trilohata) for 



basket making 252 



Mesquit Beans, utilized by the Indians for food and beverage 270 



Wild Date {Yucca glaiica). The root furnishes a satisfactory 



substitute for soap 270 



