272 



Microscopic Histochemistry 



Protection of sections with collodion, 

 16, 141 



Proteins, 112 



digestion tests, 112 

 ferrocyanide reaction, 112 

 tannin-ferric method, 112 



Prussian blue reaction, 1, 17, 38 



Pseudo-peroxidase, 163 



Pteridine, 125 



Purine bases, 77 



Pui-purin, reagent for calcium, 32 



Pyrimidine bases, 77 



Pyronin, 84 



Pyrophosphatase, 173, 174 



Quantitation 



by Coujard's metliod, 23 



by Doyle's method, 25 



of enzymes, 23 



in histochemistry, 20 



by radioactive isotopes, 25 

 Quinalizarin, reagent for magnesium, 



36 

 Quinine-iodide, reagent for bismuth, 

 46 



Redox indicator dyes, 166 



"Reduktionsorte," 165 



Resorcinol, 123, 125 



Resorcinol phosphate, substrate for 



acid phosphatase, 194 

 Rhodizonate, reagent for barium 



and strontium, 35 

 Riboflavin, 130 

 Ribonuclease, 89 

 Ribose nucleic acid, 52 

 Rubeanic acid, reagent for copper, 



41 



Saccharides, 50 



methods for, 61 

 Safranin, 84 

 Saliva test, 66 

 "Sauerstofforte," 165 

 Schiff's reagent, 56, 59, 64 

 Semi-embedding in celloidin, 15, 139 

 Serine, 54 

 Silver, 45, 46 



Simple polysaccharides, 51 

 Soaps, 92, 98 

 Sodium, 29 



Spark spectrography, 8 

 Specificity of enzymes, 149, 153 

 SphingomyeHn, 92, 103 

 Sphingosine, 52 

 Spontaneous hydrolysis of substrates, 



148 

 Stannous chloride, reagent for mer- 

 cury, 45 

 Starch, 62, 67 



iodine reaction, 67 

 Steroid hormones, 93 

 Steroids, 92 

 Strontium, 35 

 Sudan Black B, 96 

 Sudan III, 96 

 Sudan IV, 96 

 Sulfatase, 198 

 Sulfatides, 72, 92 

 Sulfhydryl groups, 128 

 Sulfur, 48 



Tannin-ferric method for proteins, 

 112 



Tellurite, reagent for dehydrogena- 

 ses, 151 



Testosterone, 109 



Tetrazolium metliod for dehydro- 

 genases, 150-52 



Thalhum, 43 



Thiocyanate method for iron, 39 



Thioglycolic acid, reagent for mer- 

 cury, 45 



Thiol groups, 128 



Thionin, 69, 84 



Threonine, 54 



Thymonucleic acid, 52 



Thyroid colloid, 62 



Titan yeUov^^, reagent for magnesium, 

 36 



Toluidin blue, 69, 73, 84 



Tracer techniques, 8 



Trichloroacetic acid, hydrolysis of 

 nucleic acids by, 87 



Triglycerides, 92 



Triolein, 101 



Triphenyltetrazolium chloride, re- 

 agent for dehydrogenases, 152 



"True" lipase, 204, 212 



Tryptophane, 115, 121 



Tungstic acid, reagent for carbohy- 

 drates, 65 



