INDEX 



253 



N 



NEGATIVE effect, 104 



Nencki and Sieber on pigments, 113 



Nencki's experiment on urea, 150 



Nerve degeneration, chemistry of, 201 



Nervous impulse, 238 



Nervous tissue, 197, 200; composition 

 of, 200 



Neurokeratin, 44 



Neutral fats, 23 



Neutral salts, action of, on carbo- 

 hydrates, 21 ; on proteins, 27, 28, 37, 

 43, 49, 77, 101, 102, 182, 192, 193 



Nickel, 8 



Nickel sulphate, action of, on proteins, 

 183 



Nicol's prism, 223 



Nissl's bodies, 201 



Nitrate of urea, 146, 156 



Nitric oxide haemoglobin, 114, 120 



Nitrogen, 3, 8 ; estimation of, 235 ; 

 tests for, 9, 10 



Nitrogenous food, 50, 51 ; glucosides, 

 201 



Nitrous acid, action of, on urea, 146 



Non-electrolytes, 237 



Nuclease, 161 



Nucleic acid, 45, 46 ; decomposition of, 

 47 



Nuclein, 3, 45, 155, 160, 161 



Nucleo-protein, 3, 10, 41, 45, 46, 91, 

 103, 105, 109, 173, 196, 200; in 

 bile, 79, 91 ; decomposition of, 47 ; in 

 muscle, 198 ; tests for, 79, 173 



Nucleus, functions of, 2 







OATMEAL, 52 



Oleic acid, 24 



Olein, 23, 55, 203 



Olfactory nerve, 67 



Oliver's hsemacytometer, 218 ; ha?mo- 

 globinometer, 220 



Opsoriins, 125 



Orcin reaction, 178 



Ordinary ray, 222 



Organic compounds, 4 



Organised ferments, 64 



Ornithine, 32, 150, 161 



Osazones, 177 



Osborne, W. A., on coagulation of milk, 

 55 



Osmic acid test, 22, 24 



Osmium, 8 



Osmosis, 38, 236, 239 



Osmotic pressure, 238, 239, 243 ; cal- 

 culation of, 240 ; of proteins, 243 ; 

 determination of, by freezing point, 

 241 ; physiological application, 242 



I Ossein, 43 



i Osteomalacia, 168 



Ovarian cyst fluid, 45 



Ovo-mucoid, 56 



Oxalate of calcium, in milk, 47, 55 ; 

 plasma, 106 ; in urine, 156, 164 



Oxalate of urea, 146, 156 



Oxidases, 66, 161 



Oxygen, 3, 8 ; in blood, 128; tension, 

 137 



Oxyhffimoglobin, 101, 102, 112, 113, 

 114, 169, 170, 172, 188, 191 ; crystals, 

 102, 112, 187; in muscle, 200; pre- 

 paration of, 191 



Oxyhffimoglobin pure, preparation of, 

 191 



Oxyntic cells of fundus glands, 70, 72, 

 73 



Oxyphenyl-alanine, 34 



PALE muscle, 199 



Palmitic acid, 24 



Palmitin, 23, 55 



Pancreas, extirpation of, 87 ; grafting 

 the, 87 ; structure of, 79, 80 



Pancreatic digestion, 78, 186, 187 ; se- 

 cretion, 186 



Pancreatic juice, 81, 85 ; action of, 78, 

 81 ; composition of, 80 ; secretion of, 



. 83 



Panum's method of precipitating 

 serum globulin, 192 



Paraglobulin, see Serum globulin 



Para-mucin, 45 



Paramyosinogen, 43, 197, 198 



Parietal cells of fundus glands, 70, 71 



Parotid gland, 67 



Partial pressure of gases, 126-140 



Pasteur on circular polarisation, 230 



Pathological urine, 166 ; pigments of, 

 216 ; pigments, 216 



Pavy on glycogenic function of liver 96, 

 176 ; an estimation of sugar, 167 



Pavy's solution, 167 



Pawlow on secretory nerve-fibres to the 

 gastric glands, 74 ; to the pancreas, 83 



Peas, 58 



Pentoses, 16, 178 



Pepsin, 65, 70, 72, 74, 81 ; solutions, 

 activity of, 184 ; hydrochloric acid, 

 70, 74, 82 



Pepsinogen, 72 



Peptic digestion, 75, 185 



Peptides, 36 



Peptone, 28, 31, 37, 47, 65, 75, 76, 77, 

 85, 96, 107, 171, 187, 195 ; precipita- 

 tion of, 76 ; in urine, 168 ; tests ior, 27, 

 76 



