402 



INDEX. 



PAGE 



Lab, the enzyme ... ... 310 



Labradorite, composition of... 40 

 Lactase, the enzyme . . . 313, 341 

 Lactic acid in blood ... ... 259 



milk 314 



,, fermentation in the in- 

 testines 271 



' ' Lacto-chrome" ... ... 307 



Lactose, hydrolysis of ... 313 



,, properties and occur- 

 rence of ... 312, 313 

 Lead arsenate as an insecticide 376 

 Leaves as litter ... ... 118 



,, amount of valuable 



constituents of ... 118 

 ,, assimilation of carbon 



dioxide by 231 



,, cause of rigidity of ... 227 

 ,, chemicalaction attend- 

 ing assimilation . . 235 

 ,, formation of carbo- 

 hydrates by ... 236 

 ,, functions of ... ... 230 



,, rate of diffusion through 



stomataof ... 233, 234 

 ,, transpiration by ... 230 

 Lecithin, constitution of ... 206 

 in beans ... ... 242 



,,bile 273 



,, blood 259 



,, milk 307 



,, muscle 266 



Leffmann-Beam's process of 



fat determination in milk... 348 

 Lehmann's standard ration for 



cows 298 



Legumin, analysis of ... ... 214 



,, in beans ... .. 242 



Leguminous crops, characte- 

 ristics of ... 243 

 ,, crops, effect of 



addition of 

 lime and pot- 

 ash compounds 



to 243 



.,, crops, source of 



nitrogen of ... 244 

 Leucine, composition and oc- 

 currence of ... ... ... 218 



Leucin, formation from pro- 



teids 271 



,, solubility of ... 271 



Leucocytes in the blood . . . 261 



Levulin, action of acids on ... 190 



,, occurrence of ... 190 



Levulose, see " Fructose" ... 194 



,, formation from inu- 



lin . 189 



PAGE. 



Lichenin, occurrence of ... 189 

 Lignification, process of ... 200 

 Ligno-cellulose ... ... 200 



Ligno-cellulose, digestion by 

 herbivora ... ... ... 200 



Ligno-cellulose, products 

 formed on treatment with 

 boiling hydrochloric acid . . . 200 



Lignose 200 



Lime as a manure ... ... 169 



,, determination of in soil 99 

 , , effect on nitrification . . . 170 

 , , effect of too heavy dress- 

 ings 170 



, , hydrated sulphate of ... 174 

 ,, suitability of when con- 

 taining magnesia . . . 170 

 Limestone as a soil constituent 52 

 , , see ' ' Sedimentary 



rocks" 42 



Linoleic acid, occurrence of... 203 



Linseed cake, manufacture of 279 



,, cakes, richest in oil... 279 



, , maiiurial value of ... 303 



' ' Little's soluble phenyl " ... 374 



" London purple" as an 



insecticide ... ... ... 376 



Lunge's method of determina- 

 tion of nitric nitrogen . . . 177 

 Lupeose, composition and oc- 

 currence of ... 196 

 , , products formed from 



hydrolysis of ... 196 

 Lysol as an antiseptic . . 373 



Magnesia, determination of in 



soil 99 



Magnesian limestone ... 15 



Magnesium, function of in 



plants ... 213 

 , , occurrence and 



properties of 15 

 ,, relative abun- 



dance of ... 19 

 Magnetite ... ... ... 16 



Maize, bye-products of ... 281 

 ,, grain of .. ... 241 



,, heat-yielding power of 293 

 , , length of growth of ... 241 



,, bran 281 



Malic acid, constitution of ... 206 



, , occurrence of ... 207 



Malt dust, production of ... 281 



,, sugar, see " Maltose" 

 Maltose, calorific power of . 5 

 ,, composition and for- 

 mation of ... 195 

 , , fermentation by yeast 196 



