INDEX. 



569 



PAGE 



Cascade range, climatic divide in N. \V. America 297 



Caves in limestone regions 41 



Celery, moderate tolerance of alkali 475 



Centrifugal elutriator, Voder's 92 



Cereals, alkali-resistance, barley, gluten wheats 471 



Channels, cutting-out by gravel 6 



Charcoal, absorption of gases by 276, 277 



Chemical absorption by soils 270 



action of roots 20 



analysis of soils (in general) 323 



character of soil, recognition of 322 



decomposition, causes intensifying 21 



processes of soil formation 16 



Chile saltpeter 66 



Chernozem 1 30 



analyses of, table 364 



Chestnut, American, a calcifuge tree 491, 519 



Chlorin, largest ingredient of sea water 27 



Chlorite 36 



Chlorosis of vines in marly lands 526 



Churn elutriator, Hilgard's ; figure 91 



Circling of hill lands 220 



Citrus fruits, injury to, from alkali 478 



lemons most sensitive 4/8 



sensitiveness to common salt 477 



Classification of rocks 47 



of soils 10 



Clay as a soil ingredient 83 



colloidal 59 



functions of, in soils 59 



maintains crumb structure 1 10 



Clays, claystones, clay shales 48 



colors of 58 



formation, flocculation and deposition of 33 



maturing of 60 



plasticity and adhesiveness, influence of fine powders on 85 



influence of ferric hydrate on 85 



Clay -sandstones, soils from 57 



Clays, separation of, by subsidence, by centrifuge 89 



varieties, enumeration of, and characters 57, 58 



fusibility of 5^ 



Claystones, soils from 59 



Cleavage of rocks 3 



Cleopatra's needle 2 



Climate 287 



Climatic and seasonal conditions 21 



Climates, continental, coast and insular 297 



Coffee soils, calcareous 4 ' 7 



