ILLUSTRATIONS. 



Page. 

 Fig. 1. Feather Blue-stem {Andropogon saccharoides torreyanus) 12 



2. Blue Grama {Bouteloua oligostachya) 13 



3. Everlasting Grass (Eriochloa punctata) 14 



4. Curly Mesquite (Hilaria cenchroides) 15 



Barnyard Grass {Panicum crus-galU) 17 



o. 



6. Colorado Grass {Panicum texanum) 18 



/. 



Wild Bean ( Fhaseolus helvohis) 22 



8. Buffalo Grass (Utdbilis daeti/loides) 24 



9. Knot Grass {Paspaluni distichum) 27 



10. Tumble Weed {Amaranihun blitoides) 30 



11. Ground Plum {Astragalus crassicarpus) 31 



12. Alfilaria {Erodium cicutarium) 33 



13. Prickly Pear ( Opuntia engelmanni) 35 



14. Mesquite Bean {Prosopis juliflora) 36 



