INDEX 



629 



Nitrilase, 8 



Nitrilese, 8 



Nitrites in saliva, test for, 59 



Nitrogen, 63, 64 



forms of in protein molecule, 64 

 importance of, in sustaining life, 64 

 in urine, quantitative determination of, 483 

 Nitrogen distribution, calculation of, 484 

 Nitrogen iodide, formation of, 436 

 Nitrogen "lag," 569 



"partition," 485, 577 

 Nitrogenous extractives of muscular tissue, 341, 



350 



formulas for, 346 



-Nitrophenol, use of, as indicator, 158 

 Nitroprusside reaction for indole (Legal), 218 

 Nitroprusside test for creatinme (Weyl), 385 

 Nitroprusside-acetic acid test for creatinine 



(Salkowski), 385 

 Nitroso-indole nitrate test, 219 

 Nitrosothymol, formation of in Heller's test, 423 

 Non-nitrogenous extractives of muscular tissue, 



341 



Non-protein nitrogen of blood, 248, 270, 271 

 Normal urine, 359, 369, 371 



characteristics of, 359 

 constituents of, 369, 371 

 experiments on, 375410 

 Novaine, 341 



formula for, 346 

 Nubecula, 396, 428 

 Nucleases, 5 



experiments on, 134 

 Nucleic acid, 124-128, 131-137 

 decomposition of, 124-126 

 experiments on, 131-137 

 from yeast, formula for, 125 

 Nucleicacidase, 5, 126 

 Nucleins, 123, 124, 144, 571 

 Nucleoproteins, 94, 112, 123, 128-131, 396, 428 

 decomposition of, 123-124 

 experiments on, 128-131 

 from yeast, 128 



preparation of, 128 



protein, carbohydrate and phosphoric 



radicals in, 130 

 tests on, 129 

 thymus, preparation of, 130 



experiments on, 130 

 in bile, 203, 207 

 in feces, 236 

 in nervous tissue, 353 

 in urine, 369, 396, 412, 428 



test for, 428 

 occurrence of, 123 

 Ott's precipitation test for, 428 

 Nucleosidase, 5, 126 

 Nucleoside, 125 

 Nucleotidase, 5, 126 

 Nucleotide, 125 

 Nylander reaction, 29, 420 

 Nylander reagent, preparation of, 29, 420 



Obermayer's test for indican, 388 

 reagent, preparation of, 388 

 Oblitine, 341 



"Occult" blood in feces, 225, 233 

 tests for, 233 



Olein, 177, 313 

 Olive oil, 1 80 



emulsification of, 180 

 neutral, preparation of, 180 

 Oliver's peptone test for bile acids, 209, 435 

 Optical methods, 31-34 

 Orcinol-HCl reaction (Bial), 37, 443 

 Orcinol test, 38, 444 



Organic physiological constituents of urine, 369 

 Organized ferments, i 

 Organized urinary sediments, 457, 465 

 Ornithine, 65, 214 



Ortho-tolidin test for blood, 171, 233, 263, 430 

 Osborne-Polin method for determination of total 



sulphur in urine, 549 

 Ossein, 336 



preparation for, 336 

 Osseoalbumoid, 336 



Osseomucoid, 94, 113, 336 



chemical composition of, 113 

 Osseous tissue, 336 



experiment on, 337 

 Ott's precipitation test for detection of nucleo- 



protein in urine, 428 

 Ovalbumin, 93 

 Ovoglobulin, 93 



Oxalated plasma, preparation of, 268 

 Oxalic acid, 369, 391, 545 



formula for, 391 



in urine, 369, 391 



quantitative determination of, 545 

 Oxaluria, 391 

 Oxaluric acid, 369, 397 

 Oxamide, 99 

 Oxidases, 5, 14, 319 



experiments on, 14 

 Oxyacids, 212, 217, 220, 369, 394 



tests for, 220 

 /3-Oxybutyric acid (see /3-hydroxybutyric acid, 



270, 271, 284, 295, 412, 440, 541) 

 Oxyhemoglobin, 64, 250, 254, 255 



Reichert's method for crystallization of, 266 



crystalline forms of, 251-254 

 Oxymandelic acid, 369, 395 

 Oxyproline, 65, 67, 85 

 Oxyproteic acid, 369, 392, 454 



Palmitic acid, 176, 177, 181, 182 

 crystalline form of, 182 

 experiments on, 182 

 . formula for, 177 



preparation of, 182 

 Palmitin, 176, 319 

 Pancreatic amylase, 4, u, 187, 192 



digestion of dry starch by, 188, 192 



inulin by, 192 

 experiments on, n, 191 

 influence of bile upon action of, 192 

 most favorable temperature for action 



of, 192 

 Pancreatic digestion, 185 



general experiments on, 190 

 products of, 1 86, 189 

 Pancreatic insufficiency, Schmidt's nuclei test for, 



237 

 Pancreatic juice, 123, 185, 186, 187 



artificial, preparation of, 189 

 daily excretion of, 186 



