Arizona Agricultural Experiment Station 



631 



Gibson, Heber H. 1920: 429; 1921: 551. 

 Gila River: 

 drainage area of. 95: 532. 

 system. 95: 545-546. 

 water : 

 need for storage of. 1918: 351. 

 silt content studies. 1920: 437, 476. 

 Gilmore Petroleum Company: 



tests of fuel oils from. 92: 412. 

 Girdle, of alfalfa. 1921: 611. 

 Glen Canyon or Lee's Ferry reservoir 



site. 95: 534, 539, 540. 543. 

 Glendale : 

 cost of pipe line at. 86: 166. 

 sewer system at. 86: 72), 157. 

 specifications for laving pipe line at. 

 86: 106. 

 Glocosporiuin. 1921: 613. 

 Golden Bell (Forsythia suspcusa). 1919: 



431; 1920: 462. 

 Golden-rod, rayless, or burro weed 

 (Bigelowia coronopifolia, and B. 

 Hartivegi) : 

 in feeding experiment. 1920: 457-459. 

 poisoning range stock. 1919: 428. 

 Gooseberry: 

 at Prescott Drv-Farm. 1921: 594. 

 at Sulphur Spring Valley Dry-Farm. 



1920: 474. 

 powdery mildew of. 1921: 613. 

 Grafting olives: 

 top. 94: 503-504. 

 young stock. 94: 502. 

 Grains: .^^, 



affected bv black alkali. 1921: 558. 

 cultural tests. 1919: 419; 1920: 445- 



446; 1921: 567-568. 

 in Salt River Valley. 85: 18-21. 

 irrigation of. 88: 220; 1921: 602. 

 marketing. 85: 19. 

 price fixing of. 85: 20. 

 varietv tests. 1919: 419; 1920: 445- 



446; 1921: 568. 

 warehouses for. 85: 14. 

 winter and spring, cultivation and 

 management of. 1919: 419; 1920: 

 444-445; 1921: 567-568. 

 yields. 85: 18. 

 Grama: 



analysis of. 1919: 411. 

 Grand River. 95: 530. 



reservoir sites on. 95: 533, 534, 539, 



540. 

 stream flow of. 95: 532. 

 Grapefruit: 

 cultural studies. 1919: 441; 1920: 



469; 1921: 588. 

 in Salt River Valley: 

 grading. 85: 48. 



limitations to industry. 85: 49. 

 marketing. 85: 48-49. 

 on the Yuma Mesa. 89: 255; 1921: 



587. 

 Grape rot. 1921: 613. 

 Grapes: 

 as a "dry-farm" crop. 1920: 473. 

 at Sulphur Spring Valley Dry-Farm. 



1918: 280; 1920: 474. 

 diseases. 1921: 613. 

 in Salt River Valley. 85: 57. 

 interplanted in olive orchard. 94: 513- 



514. 

 nursery stock at Yuma Station. 1920: 



474. 

 on the Yuma Mesa. 89: 258-259. 

 sugar content of. 1921: 595. 

 varieties. 1921: 594. 

 water requirement studies. 1920: 471; 



1921: 591. 



Grasses: 

 and grass-like plants. 1919: 431-432; 



1920: 456. 

 Bermuda. Cir. 40. 

 brome. Cir. 40. 

 burr. Cir. 40. 

 Canada blue. Cir. 40. 

 elephant. 1919: 411. 

 Florida nut. Cir. 40. 

 grama. 1919: 411. 

 Harding. 1919: 419. 

 Johnson. Cir. 40. 

 Kentucky blue. Cir. 40. 

 meadow oats, tall. Cir. 40. 

 Napier. 1919: 419; 1920: 440; 1921: 



570. 

 orchard. Cir. 40. 

 Rhodes. Cir. 36; 1920: 445; 1921: 



558, 570. 

 rye. Cir. 40. 

 Smilo. 1919: 419. 



Sudan. Cir. 35,- 1918: 287, 294; 1919: 

 410-417; 1921: 581. 

 Grasshoppers (Schistoccrca shoshone 

 and S. vega) : _ . 



differential (Melanoplus differ enttalts 

 Thos.) 87: 189, 194-196; 1918: 

 335-338. ^_ 



exterminating. 87: 195; 1918: 335- 

 338. 

 Grass lands: 



injury to by rodents. 1918: 339. 

 Grass pastures, browse pastures versus. 



1921: 577-578. 

 Graver, E. L. 94: 493. 

 Green manuring plants: 

 cow peas. 1918: 295. 

 sesbania. 89: 263. 



