INDEX 



295 



Lime, in plants, 50, 73 ; in ash of 

 crops, 54 ; in soils, 94 ; nitrate 

 of, 250, 353 ; in basic slag, 250 



Limestones, 97 



Linseed cake, 176, 178, 181 



Lipase, 16, 171 



Litter, 228 



Liver, 173 



Loam, 107, 165 



London dung, 236 



Lucerne, 138, 141, 168, 199 



Lymphatic system, 171 



Magnesia, in plants, 50 ; in soils, 



94 

 Maintenance diet, 189, 195 

 Maize, gluten meal, 182 ; as food, 



182; dynamic value of, 1 99; 



manures for, 264 

 Malt, 16 

 Mangold, yield proportional to 



combined nitrogen supplied, 53 ; 



food storage, 69 ; composition of, 



69, 182 ; manures for, 264 

 Manure, farmyard, 224 ; artificial, 



235, 248 ; required by crops, 263 ; 



value of foods, 243 

 Manuring, theories of, 161 

 Marl, 98, 167 



Marsh-gas, 137, 173, 187, 339 

 Meals, 178 

 Meat guanos, 259 

 Metabolism, of proteins, 66, 70, 71, 



173, 303 ; of carbohydrates, 173 ; 



of fats, 171 ; of starch, 14, 26, 173 

 Methane, 137, 173, 187 ; in farm- 

 yard manure, 229 

 Mica, 80 

 Micropyle, 9 



Migration of plant food, 60, 63 

 Milk, fat in, 171, 173; composition 



of, 269, 273 ; souring of, 273 ; 



morning and evening, 278 ; 



analysis, 280 

 Moisture in foods, 169 



Moulds in cheese, 387 

 Mulch, III ; soil, 113 

 Mummy wheat, 13 

 MUntz on digestion, 191 

 Muriate of potash, 257 

 Mustard seed in rape cake, 178 



Nitrate, of soda, 250, 253 ; of 

 lime, 350, 253 



Nitrates, in water cultures, 51 ; in 

 ■oil, 93, 121 ; lost in denitrification, 

 126 



Nitre, 121 



Nitrification, 121 



Nitrites formed in process of nitri- 

 fication, 122 



Nitrogen, in plants, 3 ; required in 

 combined state by plants, 53 ; 

 accumulation in black virgin soils, 

 S4 ; in plant food, 66, 70 ; in 

 humus, 87 ; in soils, 9;, 149 ; 

 cycle illustrated, 125 ; lost by 

 denitrification, 127 ; fixation by 

 bacteria, 131 ; losses and gains 

 during a four-course rotation, 

 159; excreted by kidneys, 174; 

 losses of, in manure-making, 230 ; 

 in fertilisers, 250 



Nitrolim, 250 



Nodules, on roots of leguminous 

 plants, 132 ; organisms, racial 

 adaptation of, 1 39 



Oats, as food, 182, 199 ; manures 



required by, 264 

 Offal, weight of, 208 

 Oils, in plants, 5 ; cakes, 169, 178 ; 



digestion of, 171, 174 

 Organic matter, in soils, 86, 116; 



promotes denitrification in soils, 



126, 146 

 Ox '.n, composition of, 207 

 Oxygen evolved t^ plants, aj 



Palm-nut cake, 180 



