INDEX. 513 



Page. 



Jiiglans rupestris , 44 



Junco (33 



Juniper, alligator 40 



California 42 



one-seed 41 



Juniperus californicus 42 



monosperma 41 



pachyphloea 42 



Kfpberlinia 63 



spinosa 63 



La Abra Plain 1 17 



La Carpa, Sonora , 20, 128 



La JoUa, California 22, 138 



La Osa, Arizona IS, 112 



La Morita Mountains 13 



La Noria 17 



La Repreao 18 



vegetation at ] 19 



La Ventana ] 8 



La Ventura Ranch 1 J 4 



Laguna del Alamo 21 



Laguna Mountains 22, 139 



flora of ] 35 



Laguna of Salton River, Lower California 130 



Laguna Station, California 131 



Lake Guzman 28 



collections fr( )m 82 



Lake Palomas 10, 28 



Lang's Ranch 12. 15 



Laurel, California 56 



Lechuguilla Desert 19, 20 



Mountains 19 



Lemmings 493 



Lepus floridanus holzneri 286 



Libocedrus decurrens 40 



Life areas of the Mexican Boundary Region 70 



Life zones of Old World, correlation of, with those of New World 72 



primary *" 1 



secondary - "I 



Locust, New Mexico <)2 



Lo)wer Boreal Life Zone 39, 49 



Californian tropical flora -13 



corner monument . flora of 86 



Sonoran Life Zone 32, 59. (il 



Lyonothamnus floribundus asplenifolius 56 



McMaster, Lieutenant George H I-l 



McVay, Lieutenant Harlan E <>. 13 



Madrona, Arizona '><> 



Mahogany, birchleaf 57 



cntireleaf 57 



Mammals of the Mexican F>ouii<Uuy Region 119 



30639— No. 56— tl7 m 33 



