150 



INDEX. 



PAGE 



Limestone, soil from .... 79 



Limy soil 41 



Liquid manure 94 



Litmus 66 



Loam 39 



Lucerne ........ 62 



Lungs, the 138 



Magnesia 13, 23 



Manure 90 



application of 94 



fermentation of 92 



from foods, value of ... 131 



losses of 92, 93, 94 



Manurial value of foods 129, 130, 131 



Marble 23, 31 



Marl 87 



Mastication 133 



Matter, nature of 10 



Mist 47 



Moisture of climate .... 51, 52 

 in germination .... 55, 58 

 regulated by cultivation . 103 

 withdrawn by weeds . . . 102 



Mold, vegetable 79 



Molecules 9 



Mountains 29, 32 



formation of 27 



Mouth, the 133 



Mouths of leaves 61 



Muck 95, 96 



value of 96, 97 



Muck beds 35 



Mucky soil 39 



Muriate of potash 85 



Muriatic acid 13, 22 



N. 

 Nitrate of lime 82 



of potash 82 



of soda 13, 82, 84 



Nitrates 82 



in soil 81 



Nitric acid 13 



in soil 81, 82 



Nitrification 82, 83 



Nitrogen ... 20, 41, 62, 81, 84 



PAGE 



Nitrogen as food for plants . . 62 

 North America, formation of . 27 



Nutrition in plants 72 



Nutritive ratio .... 124, 126 



O. 



Oak trees, roots of 63 



Ocean, affecting climate ... 51 



soil formed by 32 



Organic matter 17, 18 



Osmose 62 



in plants 71 



Oxidation 19, 20 



of plants 62 



Oxide of iron 13 



Oxides 19 



Oxygen 19, 20 



in germination of plants . 56 



in soil 101 



in the blood 61 



P. 



Paunch, the 134 



Peas 62 



Peat 35, 37 



Peaty soil 35, 39 



Perspiration, effect of .... 118 



Petals 74 



Phosphate of lime .... 13, 84 

 Phosphoric acid . . 13, 22, 83, 84 



Phosphorus 22 



Pistils 74 



Planting, depth of 57 



Plants, growth of 68 



breathing of 20 



food of 60 



instinct of 59 



leguminous 62 



structure of 68 



Plant food, formation of . . . 101 



Plaster, land 87 



Plowing 103,104 



subsoil 105 



time for 105, 106 



Plumule, the 59 



Pores of wood 15 



Porosity of matter 15 



Potassium 23 



