392 



INDEX 



Nitrate of lime, 140, 167. 



of soda, 132, 164. 

 comparison of, with 



(NH 4 ) 2 .S0 4 . 165. 



consumption of, 135. 



perchlorabes in, 134, 174. 



valuation of, by refraction, 



174. 

 Nitrates, deposits of, 5, 132, 141. 



destruction of, by starch, 70. 



estimation of, in soils, 93. 

 Nitric acid in atmosphere, 25. 

 rainfall, 26. 



organism, 64. 

 Nitrification, 62. 



essential conditions for, 64. 

 Nitrites, estimation of, in soil, 95. 

 Nitro-bacter, 64. 

 Nitrobacterine, 69. 



Nitrogen, 5. 



estimation of, in a manure, 173. 



in foods, 262. 



in soil, 85. 



fixation of, through symbiosis, 67. 



fixing organisms in soils, 66. 

 in atmosphere, 19. 



loss of, from manure heap, 117. 



proportion of, in food retained by 



animals, 309. 



putrefaction of combined, 62, 115. 



utilisation of atmospheric, 138, 140. 

 Nitrogenous manures, 132, 172. 



proteid matter in plants, 232. 



substances in plants, 207. 

 Nitro-glycerine, 6. 

 Nitrolim, nitrolime, 138. 

 Nitroso-coccus, 64. 

 Nitroso-monas, 64. 

 Nitrous organism, 64. 

 Nonose, 180. 



Nucleon in milk, 318. 

 Nuoleo-proteins, 208. 

 Nutritive ratio v. Albuminoid ratio. 

 Nuts, 245. 



0. 



Oat-hay, 237, 304. 

 Oat -straw, 237. 

 Oats, 237. 



bye-products of, 285. 

 Oil-cakes, 281. 



manufacture of, 198. 



value of, as manures, 131. 



Oils, drying and non-drying, 196. 



essential, 200. 



extraction of, 198. 

 Olefine series, 7. 



Olefinic terpenes and sesquiterpenes, 202. 

 Oleic acid, 196, 313. 



series of acids, 196. 

 Oleomargarine v. Margarine. 

 Oligoclase, 35. 



Olivine, 36. 



Organic acids, 8. 



and their salts, 199. 



chemistry, meaning of, 8. 



manures, 120. 



matter in atmosphere, 30. 

 Organisms, micro-, 60. 

 Ornithine, 209. 

 Orthoclase, 9, 35. 

 Osazones, 185. 



Osmosis, theory of, 224. 

 Osmotic pressure, 224. 



with regard to plants, 225. 



Ossein, 269. 



Osteolite, 9. 



Osteoporosis, 269, 303. 



Ox, clot of blood of, 126. 



Oxalates of potassium and calcium, 199. 



Oxalic acid, 199, 248. 



Oxidation, process of, 3. 



seat of, in body, 269. 

 Oxygen, 3. 



absorption of, during flowering, 233. 



in germination, ^-2\. 



in haymaking, 254. 



action of, in denudation, 41. 



as disinfectant, 367. 



evolved from leaves, 231. 



in atmosphere, 20. 



in blood, 267. 



in expired air, 269. 



in soil-gases, 71. 



need for, in nitrification, 65. 

 Oxyhsemoglobin, 266. 

 Oxyproline, 209. 



Ozone as disinfectant, 307. 



in atmosphere, 28. 



P. 



Palmitic acid, 196, 31A 

 Palm-nut cake, 283. 



meal, 283. 

 Pancreatic juice, 275. 

 Para-cresol, 276. 

 Paraffin series, 7. 

 Paraffinic'acid, 49. 

 Parapectic acid, 194. 

 Parasitism, 68. 

 Parchment paper, 190. 

 " Paris green," 370. 

 Parmesan cheese, 340. 

 Parsnip, 250. 

 Pasteurisation, 345. 

 Pea, 241. 



Pea-nut cake v. Earth-nut cake. 

 Pea-nuts, ground-nuts, monkey-nuta, 



241. 



Pear, avocado, 192. 

 Pearl barley, 237. 



millet, 240. 

 Peat, 38. 



Peat as litter, 111. 



Pectase, 194. 



Pectic acid, pectin, pectose, 194. 



