INDEX. 



Page. 



Algerian oases, climate compared with Tunis oases 22,23,24,27,28 



Alkali soils 36-41 



composition of the alkali 37 



reclamation 36 



resistant varieties of date palm 66,70,72,74,78,79,84,85 



Ammary variety 87, 103 



Angoo variety 74, 97 



Areshty variety 70, 101 



Arizona localities, climate compared with Tunis oases 22, 23, 24, 27, 28 



Atmospheric humidity 26 



Baydh Hammam variety 76,100 



Bayjoo variety 82, 97 



Bent Segny variety 87,103 



Besser Haloo variety 78,101 



Boo Affar variety 58,66,101 



Boo Fagoos variety 58,67,101 



Calcium sulphate in soils 34,38 



Chedakh variety 92,106 



Classification of varieties hy botanical characters 95-97 



by commercial value 57 



Climate of Tunisian oases .V, 21-28 



humidity 26-27 



precipitation 25,27-28 



temperature 21-26 



Climate of different years as affecting date crop 25,26,51,52 



Colors, terms used in describing 95 



Cost of agricultural operations 45,47,53-54 



Cultivation of soil 45 



Culture of date palm 41-55 



Date crop as affected by climate of different years 25, 26, 51, 52 



Deglet Barca variety 90 



Caid variety 90 



Hamidatoo variety 92,105 



Hassen variety ' 92, 103 



Noor variety 58, 63, 104 



alkali resistance 66 



botanical characters 63,104 



climatic conditions necessary 64 



commercial importance 58,63 



geographical distribution and abundance 64 



harvesting 52-54 



productiveness 65 



quality in Tunis as compared with Algeria 65 



quality of fruit from commercial standpoint 58,63 



slow development of palms 65 



time of ripening 65 



Sennayga variety 90 



Djerid. See Jerid. 



Doonga variety 77, 101 



Douz oasis 19 



Drainage, chemical composition of drainage water 40 



description of system 33 



importance in reclaiming alkali soils 36 



92 107 



