SUBJECT INDEX 



529 



Sodium and potassium, Linderstr0m- 



Lang method, 266 

 Sodium and potassium (combined) by 



titrimetric technique, 265 

 Sonic vibrations for disruption of 



spermatozoa, 471 

 Spectrograph for microanalysis in 



Roentgen absorption histospec- 



troscopy, 136 

 Spectrograph, vacuum. See Vacuum 



spectrograph. 

 Spectroscopy. See also Histospectros- 



copy. 

 in analysis of fluorescence, 108 

 Spermatozoa, disruption bj' sonic vi- 

 brations, 471 

 "Spinning top" centrifuges. See 



Centrifuges. 

 Staining methods. See Chemical stain- 

 ing methods and under specific 



compounds to be determined. 

 Starch, chemical staining methods, 



43, 51 

 detection by polarized light, 51 

 Steiger method for carotene in leaves, 



42 

 Stein test for bile pigments, 63 

 Stirring devices, 178 

 Stoneburg procedure for isolation of 



cell nuclei, 456 

 Stoppers, 169 

 Stowell technique of absorption histo- 



spectroscopy, 125 

 of Feulgen stain for desoxyribo- 



nucleic acid, 66, 126 

 Streptococcus pyogenes, isolation of 



particulate from, 471 

 Strontium, radioactive, by radioautog- 



raphy, 161 

 Submicroscopic particulates of cyto- 

 plasm, 465 

 Succinic dehydrogenase, chemical 



staining methods, 96 

 Sudan dye, Telford Govan technique 



for staining lipids in aqueous 



media, 40 

 Sudan IV for localization of lipids, 39 

 Sugars, reducing, determinution by 

 Heck-Brown-Kirk method, 297 



determination by Holter-Doyle 

 modification of Linderstr0m- 

 Lang-Holter method, 296 



Sugars (continued) : 



by titrimetric techniques, 296 



Sulfate compounds, polysaccharide, 

 Lison method for, 47 



Sulfhydryl groups, free, chemical 

 staining method, 36 

 protein-bound, chemical staining 



method, 37 

 total, chemical staining method, 37 



Sulfide method of Castel, for arsenic, 

 30 



Sulfonamides, chemical staining meth- 

 ods, 75 



Sulfur, radioactive, by radioautog- 

 raphy, 161 



Sumner reagent in determination of 

 reducing substances, 211 



Supernatants, trichloroacetic acid, 

 preparation, 199 

 tungstic acid, preparation, 198 

 zinc sulfate-sodium hydroxide, prep- 

 aration, 200 



Sure-Wilder method for creatine and 

 creatinine, 243 



Syringe pipettes, 176 



T 



Telford Govan technique for Sudan 

 dye staining of lipids in aqueous 

 media, 40 



Thiamine, determination by Cartesian 

 diver manometry, 394 

 localization by spectroscopic analy- 

 sis of fluorescence, 109 

 Ochoa-Peters method for, 394 

 Westenbrink method for, 395 



Thomas method for arginine and ar- 

 ginine-containing proteins, 58 



Thomas-Lavollay hydroxyquinoline 

 test for iron, 21 



Thymonucleic acid, Turchini, Castel, 

 and Kien method for differenti- 

 ation, from ribonucleic acid, 66. 

 69 



Thymus cells, isolation of nuclei from, 

 459 



Tissues, changes of fluorescence color 

 with temperature, 106 



