Index 



271 



Nitropnisside 



reagent for sulfhydryl groups, 129 



reagent for zinc, 42 

 Nonmetallic elements, 46 

 Nucleal reaction, 56, 79, 80 

 Nucleases, 88 

 Nuclei, spurious alkaline phosphatase 



reaction, 144, 181 

 Nucleic acids, 47, 52, 55, 77 



enzymatic extraction procedures 

 for, 88 



nonenzymatic extraction proce- 

 dures for, 87 

 5-Nucleotidase, 186 



Ochronosis, 135 



Oil Red O, 96 



Oil-soluble dyes, 95 



Oleic acid, 101, 110 



Organic substances, 50 



Osmium tetroxide, 101 



Oxidases, 153 



Oxidative enzymes, 150 



Oxidized fats, acid fastness of, 101 



"Oxypolar affinity," 166 



Paraffin, 92 



Pectinase, 66 



Perchloric acid, extraction of nu- 

 cleic acids by, 87 



Periodic acid 



oxidant of fats, 106 



oxidant of polysaccharides, 53, 58 



Permanganate, oxidant of polysac- 

 charides, 55, 63 



Peroxidase, 162 



methods for, 164-65 

 reaction of hemoglobin, 163 



Peroxides, fatty, 92, 110, 156, 157, 

 158 



Petrolatum, 92, 96 



Phenol oxidase, nonspecific, 158, 159 



Phenolic ketosteroids, 120, 216 



Phenolic pigments, 134 



Phenolic substances 



azo-couphng reaction, 120 

 condensation reactions, 122 

 ferric chloride reaction, 121 

 indophenol reaction, 121 

 reducing properties, 121 



Phenolophilia, 159 

 9-Phenyl-2,3,7-trihydroxyfluorone, re- 

 agent for sugars, 79 

 Phloroglucinol, 123 

 Phosphamidase, 174, 194 

 Phosphatase 



acid, 189 



alkaline, 175 



and calcifications, simultaneous 

 demonstration of, 186 



radioactive technique for, 183 



for the removal of nucleic acids, 

 89 

 Phosphatases, 172 



classification, 174 



inactivation, 178 

 Phosphate, 47, 83 

 Phosphatids, 92 

 Phosphoarginine, 194 

 Phosphocreatine, substrate for phos- 

 phamidase, 195 

 Phospholipase, 187 

 Phosphohpids, 101, 103 

 Phosphoric acid p-chloroanihde. 195 

 Phosphorus, 47 

 Phosphorylase, 197 

 Phrenosin, 92 



Pigment of wear and tear, 135 

 Pigments 



classification, 132 



endogenous, 133 



exogenous, 133 



hematogenous, 133 



iron-containing, 133 



iron-free, 134 



lipogenic, 135 



phenolic, 134 

 Pinacyamol, 73 

 Plasmal, 104 

 Plasmalogen, 92, 104 

 Polarization microscopy for lipids, 98 

 Polygalacturonidase, 67 

 Polyphenols, 120 

 Polysaccharides, 51 

 Porphyrin, 133 

 Potassium, 30 



quantitative determination in sec- 

 tions, 23 

 Proline, 114, 121 

 Prosthetic groups, 120 



