60 DROUGHT RESISTANCE OF OLIVE IN SOUTHWESTERN STATES. 



Page. 



Seville, Spain, date of blossoming of olive 39 



Sfax, Africa, factors relating to olive culture 21-22, 35, 37, 38 



Sicily, factors relating to olive culture 36-38 



Simmonds, P. L., on altitude of growth of olive at Quito 36 



Smith, J. G., on analyses of soils. 22 



Soils, analyses 20-23 



relation to olive culture 9, 12, 13, 15, 16, 20-23, 27, 32, 33, 43 



tests in California 23 



Spacing of trees. See Olive, trees, spacing. 



Spain, cultivation of olive 39 



Stem of the olive. See Olive, anatomical structure. 



Stock, live, relation of browsing habits to olive culture.'. 13-14, 15, 16 



Summary of bulletin 42-44 



Temperature, relation to olive culture 9-10, 16, 18-19, 24-25, 31, 33, 34^0, 43, 56 



Texas, dry-land olive culture 34-35, 42 



Tombstone, Ariz., climatic record 36 



Topography, typical localities 12, 13, 17, 32 



Trabut, L., on soils favorable to olive growth 22 



Tucson, Ariz., climatic record 36, 37, 38, 39 



Tunis, factors relating to olive culture 10, 35, 38, 42, 44 



Underground water. See Water. 



Varieties of the olive. See Olive, varieties. 



Wallaber, A. B., on climatic data 32, 39 



Washingtonia filifera, adaptation to arid conditions 24 



Water, underground, relation to olive culture 12-13 



Weather Bureau, on climatological data 32, 34, 36, 39, 40 



Weeds, relation to olive culture 23, 33 



Whitewater River, diversion of water for irrigation 18 



192 



o 



