530 INDEX. 



Page. 



Willow, desert 68 



longleaf 46 



longstalk 45 



. Nuttall 47 



smoothleaf 46 



yewleaf 46 



Wood-mouse, Apache 410 



Arizona 391 



Texas gray 404 



Wood-rat 318 



Apache. 491 



Attwater 469 



Banning 486 



Chihuahua 491 



Colorado River 472 



Eastern Desert 482 



hermit 487 



pallid 471 



pine 490 



pretty 492 



Rhoads • 484 



San Diego 488 



small-footed 470 



Stephens 493 



Texas 470 



Western Desert 475 



white-throated 476 



Wood-rats 467 



Wragg's Ranch, Texas 81 



Xanthium 396 



Xerospermophi]us 328, 329, 336 



Yaqui Basin 4 



Subtropical Tract 73. 74 



Indians, characteristics of 4, 26 



Ysleta, Texas ■ 9 



Yucca brevifolia 43 



constructa 43 



desert 43 



large-fruit 44 



macrocarpa 44 



Mohave 44 



mohavensis 44 



radiosa 4^ 



Schott 43 



t rccul eana 43 



Yuma. Arizona 20, 125 



Desert 19, 20. J23 



grasshopper mouse 378 



ground-sciuirrel 336 



Zizyplms. obtuseleaf 64 



obtusifolius 64 



o 



