148 



INDEX. 



PAGE 



Canada thistles 63 



Cane sugar 12 



Cap of roots 64 



Capillaries, the 137 



Capillary attraction 67 



of roots 68 



in plants 71 



Carbo-hydrates .... 119, 120 



Carbon 21 



from the air 60, 61 



Carbonate of ammonia ... 82 



Carbon dioxide 19 



Carbonic acid . 13, 14, 18, 19, 20, 41 

 absorbed by plants ... 61 

 in the animal system . . . 138 



in the soil 101 



Carboniferous vegetation ... 39 



Care of animals 140 



Carnivorous animals .... 114 



Carrots 63 



Caustic potash 23 



Caustic soda 23 



Cells 68 



form of 70 



growth of 69 



of a potato 69 



of ripe fruit 69 



Cellulose 60 



Charcoal 21 



as a filter 14 



Chemical action 11 



in soil 80 



Chemical affinity 9 



Chemical equations 12 



Chemicals, use of 88 



Chewing the cud .... 135, 136 



Chlorate of potash 23 



Chloride of potash . . . . 13, 85 



Chlorine 22 



Circulation of the blood ... 136 



Clay 22 



Clayey soil 38 



Climate 50, 51 



Clouds 47 



Clover 62, 63, 73 



roots 64 



Coal, origin of 37 



Cohesion 14 



Cold wave 49 



Combustible matter 18 



PAGE 



Combustion 20 



Composition of foods .... 118 



of soil 77 



Continents, formation of ... 27 



Cooling of the body .... 118 



Coral reefs . . . " 37 



Corn meal, effects of .... 120 



Corpuscles 138 



Cotton 70 



fiber 73 



Cranberry plants 101 



Crops, rotation of 110 



Crystallizing 19 



Crystals of snow 17 



Cultivation 100 



deep 107 



of hoed crops 107 



purposes of 100-103 



shallow 107 



D. 



Dark weather, effect of ... 61 



Decomposition 20 



of soil 101 



Deep cultivation 107 



Deep plowing 104 



Dew 48 



Diamonds 21 



Diffusion 65 



in plants 68, 72 



Digestible parts of food . . . 121 



Digestion 133 



Disks of the blood 138 



Drainage, by deep tillage . . . 104 



Draining 108 



cold soil 110 



Drains, to prevent effect of 



drought 109 



Earth, its original condition . . 26 



its age 29 



its interior 26 



Earthquakes 26 



Economy in feeding . . . 122, 123 



Effect of agriculture .... 78 



Effervescence 14 



Elementary substances ... 8 



