944 



IXDEX 



Nervous tissue, mineral constituents of, 

 306. 



Neumann's experiments on protein 

 minimum and optimum, 402. 



Neutrality regulation, 732. 



New-born infant, See Infant, new- 

 born. 



Nitrobenzene poisoning, blood trans- 

 fusion in, 833. 



Nitrogen, amount of, excreted in urine, 

 table of, 405; 



blood, comparative nitrogen parti- 

 tion of urine and, in per cent of 

 total non-protein nitrogen, table, 

 434. 



non-protein, 432. 



urea, 435. 

 -rest, 442. 

 total, 432. 



uric acid, 437. 



determination of, in urine, titra- 

 tion method of Liebig for, 67. 



- Voit's- method, 68. 



elimination of, 67. 



in the feces, 504. 



non-protein, of cerebrospinal fluid, 

 472. 



in the sweat, 513. 



urea, in nephritis, fable of, 439. 



of the urine, 485. 



methods of calculating from re- 

 spiratory exchange and, 563. 



nitrogenous substances, 507. 

 Nitrogen balance, negative, 116. 



positive, 116. 



Nitrogen gas, "residual air," discovery 



of, by Rutherford, 16. 

 Nitrogen intake, lowest value for, with 



maintenance of equilibrium, 407. 

 Nitrogen metabolism, effect on, of 



antimony, 754. 

 of arsenic, 754. 



of blood transfusion, 828. 



of cocain, 777. 



of purins, 779. 



of sodium chlorid, 721. 



Nitrogen minimum, 401. 



Nitrogen partition of urine and blood, 

 comparative, in per cent of total 

 non-protein nitrogen, table of, 434. 



Nitrogenous constituents of milk, 478. 



Nitrogenous equilibrium, 116. 



and body weight, Abderhalden's ex- 

 periments on, 123, 124, 125. 



Nitrogenous substances, in the urine, 



507. 



Normal leucin, 86, 109. 

 Nose-pieces, for measuring respiratory 



exchange, 532. 



Nucleic acid, animal, 145. 



chemical part, 135. 



decomposition, enzymatic, of com- 

 bined purins, 158. 



distribution of, purin ferments, 154. 



formation of oxy-purins from 

 amino-purins, 151. 



formation of uric acid from, 150. 



from oxy-purins, 151. 

 guanylic acid, 141, -142. 



inosinic acid, 141. 



physiological decomposition of, 148. 



physiological destruction of uric 

 acid, 153. 



plant, 135. 



thymus, partial decomposition 

 products of, 147. 



yeast, dextro-ribose, 136. 



yeast, fundamental groups of, 136. 

 nucleotides of, 143. 



nucleotides of, 139. 



nucleotide linkages of, 140. 



pentose, 136. 



purin derivatives, 137. 



amino-purins, adenin, 137. 

 -guanine, 137. 



- chemical relation of amino- 

 and oxy-purins, 138, 139. 



oxy-purins, hypoxanthin, 137, 

 138. 



-uric acid, 137, 138, 139. 

 zanthin, 137, 138. 



pyrimidin derivatives, 136. 



cytosin, 137. 



uracil, 137. 



six substances of, 136. 

 Nucleoprotein, formation of uric acid 



in urine from, 495. 



Nucleotides, yeast, 143. 



Nucleotide linkages of yeast nucleic 

 acids, 140. 



Nucleotides of yeast nucleic acid, 139. 



Nurslings. See Infants. 



Nutrition, level of, 416. 



Nutrition, and energy relations in- 

 volved, as they concern the animal 

 organism, 69. 



Nutritive value of alcohol, 297. 



Old age, energy metabolism of, 658. 

 Opiates, effect of, on metabolism, 

 765. 



acid-alkali, 766. 



body temperature, 765. 



carbohydrate, 766. 



in diabetes, 766. 

 -fat, 766. 



protein, 766. 



temperature of the body, 765. 





