586 INDEX. 



PACK 



Stassfurt Salts, nature of 71 



Stonecrops, succeed mosses 20 



Stone fruits, resistance to alkali 478 



Stratified rocks, derived from crystalline 29 



Stunted growth, caused by shallow or very heavy soils 504 



Sturdy growth on calcareous lands 502, 503 



Subsidence method 89 



Subsoils, arid region 163 



and deep plowing 164 



calcareous 162 



rawness of, in humid climates 163 



Substrata in arid region, importance of 173 



faulty, with figures 177 to 180 



impervious, injury from ; figure 181 



leachy 182 



marly 186 



Subterranean rivers 41 



Sulfate of potash, high-grade 71 



of soda, dust from , 77 



injuriousness to plants 77 



occurrence in arid regions 77 



Sulfates, reduction of 232 



Sulfuric acid in arid and humid regions 394 



Summer mulch, loss of humus in 132 



Sunflower family, resistance to alkali 473 



Sun's heat, penetration into the soil 302 



Surface crusts, formation of in, 117 



physical analyses of n8 



Surface, hydrostatic and ground waters 215 



Surface waters, chemical effects of percolation 161 



physical effects of percolation 161 



Swamping of alkali lands, consequences of 451, 463 



irrigated lands, results of 231 



Symbiosis, adaptation to, of Rhizobia 154 



Szek of Hungarian plain 440 



T. 



Tabashir 31 



Talc and serpentine 36 



Tap-roots, moisture supplied by 229 



Tea, failure on calcareous lands 414 



Temperature, annual mean of 289 



conditions, ascertainment and presentation of 288 



extremes, on high mountains and plateaus 288 



of stellar space 288 



seasonal, monthly and daily means 289, 291 



Temporary vs. permanent productive capacity of soils 340 



