530 



SUBJECT INDEX 



Tissiu'is {cimlinued) : 



preparation for fluorescence micros- 

 copy, 102 

 Tissue sections, frozen, preparation, 

 427 



method for cutting and handling. 

 428 



microscopic examination and chemi- 

 cal analysis on same section, 430 

 Titanometric method for iron, 276 

 Titration. See also Electrometric ti- 

 trntion. 



holders for tubes in, 170 

 Titration vessel of Kirk and Bentley, 



169 

 Titrimetric techniques, 255 



for acid groups, 290 



for alkali groups, 290 



for amide, peptide, and nitrate 

 nitrogen, 288 



for amino groups, 290 



for amylase, 302 



for arginase, 306 



for ascorbic acid, 300 



for calcium, 272 



for catalase, 310 



for chlorides, 281 



for esterases, 308 



for glycogen, 298 



for iodine number of lipids, 294 



for iron, 276 



for lipases, 308 



for lipid, 291 



for nitrogen and ammonia, 233, 283 



for phosphorus, 280 



for proteolytic enzymes, 302 



for reducing sugars, 296 



for urea, 286 



for urease, 287 



methods, 265 



photometric endpoints, 265 

 Tobias-Gerard respirometer, 322 

 Toluidene blue stain for starch, 51 

 Tompkin.s-Kirk diffusion method for 



nitrogen, 232 

 Torsion balances, 189, 191 

 Tracers, role of radioautography in 



use of, 153 

 Trichloroacetic acid supernatants, 



preparation, 199 

 Tryptic activity, formol method for, 



" 306 



Tryptophane in proteins, chemical 

 staining methods, 58 



Tube and pestle, in chemical tech- 

 niques, for grinding tissue, 170 



Tube holders, 170 



Tungstic acid supernatants, prepara- 

 tion, 198 



Turchini, Castel, and Kien method 

 for differentiation of ribo- and 

 desoxyribonucleic acids, 66, 69 



Turchini, Castel, and Kien method 

 for nucleic acids, 66, 69 



Turnbull's blue test for ferrous iron, 

 20 



"Tweens" as substrates for localiza- 

 tion of lipase, 89 



TjTosine in proteins, chemical stain- 

 ing methods, 59 



U 



Ultracentrifuge, Svedberg oil-driven, 



448 

 Ultrafilters, 177 

 Ultraviolet absorption histospectros- 



copy, 113 

 Uranium, chemical staining methods, 

 29 

 by microincineration, 145 

 Uranium salts, detection by fluores- 

 cence, 108 

 Urates, Hollande modification of 

 Courmont-Andre method for 

 localization of, 73 

 Urea, chemical staining methods, 75 

 colorimetric determination by 



capillary tube method, 213 

 determination by use of urease, 286 

 by Kinsey-Robinson method, 286 

 by Linderstr(7(m-Lang-Holter 



" method, 286 

 by titrimetric techniques, 286 

 Urease, chemical staining methods, 77 

 in determination of allantoin, 243 

 in determination of arginase, 307 

 in determination of urea, 286 

 titrimetric techniques for, 287 

 Uric acid, by Borsook method, 240 

 colorimetric determination by capil- 

 lary tube method, 213 



