522 IITDEX. 



Page. 



Reithrodontomya, fulvescens 459 



laceyi 458 



longicauda 457, 464 



megalotis 457, 460 



deserti 462 



group 456,457,463 



mexicanus group 456, 463 



intermedius 457 



pallidus 456,457,465 



Rhamnus crocea' 64 



insularis 64 



purshiana 64 



Rhus integrifolia 63 



Ricefield mouse, Allen 455 



Texas ■ 454 



Rillito Creek, Arizona 17 



Rio Grande, Chihuahua 81 



ground squirrel " 328 



Road-crossing of the Santa Cruz River, Sonora 106 



Roath, Captain W. D., commanding revenue-cutter Wolcott 5 



Robinia neomexicana 62 



Rock-squirrel 306, 315 



Nuevo Leon 324 



Texas .^ 323 



Rocks from the Mexican Boundary Region, report on 4 



Rocky Mountain bighorn 235 



Rodents ^ .• 247 



Sahuara L 64, 65 



Salix amygdaloides 46 



argophylla 46 



fluviatilis 46 



laevigata 46 



lasiolepis ■ 47 



nigra 45 



nuttallii , 47 



occidentalis longipes 45 



taxifolia 46 



Salton River 21 28 29 



Sea 28, 29 



SambucuB callicarpa gg 



glauca gg 



mexicana gg 



San Bernardino ^ -13 



Mountain ground-squirrel 3]^3 



Ranch gg 



collections made at g6 



River, Mexico, flora of I3 jg 29 96 



SP™gs 12, 13^ 14! le! 95 



Valley ' ' \^ 



San Clemente ironwood eo 



mouse ,„„ 



San Clemente Island, California 20 23 130 ]'?9 



birds of ' ' '■,.-, 



