INDEX. 



^ 



Tage. 



Alfilerilla, introduction, experiments 12 



Altitude, relation to ground cover 9, 10 



Andropogon saccharoides, seeding, experiments 14 



Arid regions. See Regions, arid. 



Aristida bromoides, weedy annual, description, etc 15, 16 



californica, vegetation, annual variations 15 



divaricata, vegetation, annual variations 15 



Arizona, stock range, protected, history, early 7-8 



since 1903 8-9 



Arroyos, growth of perennial grasses 17 



Avena barbata, introduction, experiments 13 



fatua, introduction, experiments 13 



Bouteloua aristidoides, description 16 



drought-resistant, seed-producing plant of arid regions, 



experiments 11, 15 



bromoides, reproduction, experiments in Santa Rita Mountains 11-12 



seeding, experiments 15, 16 



curtipendula, seeding, experiments 14 



oligostachya, importance, origin and description 14 



seeding, experiments 14 



rolhrockii, reproduction, experiments 11-12 



seeding, experiments 14, 15, 16 



vestita, seeding, experiments 14, 15 



Bromus maximus, introduction, experiments 13 



Brush, cause of unproductiveness 9 



California, forage plants, experiments in introduction 13 



Cattle, influence in spreading seed of mesquite 23 



Clover, bur, introduction, experiments 13 



Coronado National Forest, fencing of pastures 7-9 



Crops, farm, arid regions, importance of thin seeding 11-12 



Desert plants. See Plants, desert. 



Eurodium cicutarium, introduction, experiments 12 



Farm crops. See Crops, farm. 



Feed, grasses, accumulation upon ground and appearance 17 



production, influence of rainfall 20-21 



uniformity and increase 19, 20 



yield, conditions, etc 20-21 



Fires, forest, arid regions, value in controlling shrubs 22 



Flood waters. See Waters, flood. 



Forage, growth in desert regions, appearance, habits, etc 17 



Plant Investigations, Office, plants furnished for testing 12-13 



plants. See Plants, forage. 

 177 25 



