214 



OXIDATION-REDUCTION POTENTIALS 



PAGE 



Proteins, SH groups in ... ... ... 45 



Protocatechuic acid, Eh of... ... ... 72 



„ „ ethyl ester .. . ... 72 



Pteroylglutamic acid ... ... 62, 144 



Pyocyanine, electrode potentials of ... 64 



Pyridine nucleotides ... ... ... 57 



Pyridoxal phosphate ... ... ... 59 



Pyridoxin 59, 163 



PyrogaUol, Eh of 72 



Pyruvic acid ... ... ... ... 46 



„ acid production ... ... 85 



,, oxidase ... ... ... ... 138 



Quinhydrone electrode ... ... ...33,38 



,, reasonance complex ...20,38 



Quinine 142 



Quinone-hydroquinone system ... ... 2, 20 



Quinones bactericidal ... ... ... 141 



„ polarographjf ... ... ... 162 



R (gas constant) ... ... ... ... 7 



RaveneUn ... ... ... ... ... 67 



Redox potential, see Electrode potential. 

 Reducing agents, definition of 



„ » grading of 



„ substances from bacterial dissolu 

 tion 

 Reduction, accompanies oxidation 



„ biological 



„ definition 



,, in bacterial cultures ... 



„ intensity of bacteria ... 



„ of broth 



of dyes 



„ percentage, relation to Eh 22, 105 



„ potential, see Electrode potential 2 



128 



17 

 17 



... 98 



3 



74, 88, 102 



3, 7, 17 



... 102 



98 et seq. 



... 102 



74 



Resazurin 

 Resistance, bacterial 

 Respiration, bacterial 

 Respiratory enzyme, Warburg's ... 

 Respiratory quotient 

 " Resting " bacteria 

 Reversible reactions 

 rH, criticism of use of 



,, derivation 

 Rhotanium alloy electrodes 

 Riboflavin ... 

 Ribonuclease 

 Rickettsial infections 

 Robison ester 

 Rosindone sulphonate 



Saccharomyces cerevisice. Eh of 



„ marxianus. Eh of ... 



Safranines ... 



Salmonella group. Eh of ... 



Salt bridges ... 



Selection of bacterial variants 



Semiquinones 



poliirograpliy 



Serum, effect on Eh 



,, „ „ bacterial virulence 



„ oxygen carrying efl'ect 

 „ SH groups in 



Sewage sedimentation tanks 



1 



151 



102 et seq. 

 55 

 81 

 77 

 1 

 9 

 9 

 31 

 55 

 132 

 152 

 85 

 24 



80 



80 



24 



124 



32 



151 



66 



161 



118 



129 



118 



46, 160 



29, 



PAGE 

 132 



163 



Sewage testing 

 Sex hormones 



Shiga's dysentery bacillus, see B. dysenterioe 

 Sign of potential 

 Sludge sewage 

 Slugs, orange pigment of ... 

 Soil antibiotics 

 „ corrosion 



Soils 



Solid media, peroxide formation in 

 Specific substance of bacteria 

 Specificity of enzymes 

 Spectroscope, micro-ceU for 

 Spinuloftin ... 

 Spores, see Tetanus. 

 Standard half-cells ... 

 Standard potentials 

 Staphylococcal cultures, electrode 



tials of 

 Starch, fractionation 



„ iodine potentials ... 

 „ sjTithesis ... 

 Starfish eggs... 



„ sperm 

 Streptococci, see Haemolytic strept' 

 Streptococcus lactis in cheese 

 Streptomycin 

 Streptothricin 

 Structural analogues 

 Subcutaneous tissue. Eh of 

 Succinate-fumarate system 

 Succinic dehydrogenase 

 Sulphate reducing bacteria 

 Sulphonamide drugs 

 Sulphydryl systems 



„ and enzymes ... 



„ and h?emo]ysins 



„ and oxytocic activity.. 



polarography 



Summaries of chapters 17, 36, 44, 82, 94, 136, 



153, 164 

 Suppressors, maximum ... ... ... 158 



17 

 ... 132 

 ...66,76 

 ... 148 

 ... 126 

 ... 132 

 ... 1.30 

 129, 132 

 ... 102 

 ... 51 

 ... 67 



... 32 



... 16 



poten- 



1 1 1 ei seq. 



73 



73 



86 



75 



75 



128 



149 



153 



144 



119 



70 



70 



126 



143 



45 



46 



129 



72 



159 



ococci. 



133 



Symbiosis 



T (absolute temperature) ... 

 Tetanus spores, germination of 

 Te trathionase 



Tetramethylsafranine, Eh of 

 Thermostable residue 

 Thiamin 

 Thionine, E^q curve 



„ „ and bacteriostasis 



Thiourea, Thiouracil 

 Thunberg technique 

 Thyroxine ... 

 Time factor in dye equilibria 

 Tissue cultures 



Tissues, electrode potential of 

 Tocopherol ... 

 Toluylene blue, E^q data ... 

 Torula Candida, Eh of 

 Toxicity of dyes 

 Toxicology ... 



116 



7 



119 



78 



24 



45 



58 



25 



21,23 



126 



140 



77 



145 



27 



79 



76 



62, 69 



21,23 



80 



28,75 



164 



