460 



INDEX. 



Post-office rules for mailing specimens 



of bacteria, no 

 Potassium permanganate, 257 

 Potato as a culture-medium, 71 

 growth of B. typhosus on, 372 

 bacillus (see Bacillus mesentericus 



vulgatus) 

 Precipitins for albumen, 196 



for bacteria, 197 

 Predisposition to infection, 155 



age, altitude, climate, individual, 



179 



amount of infectious material, 

 number of bacteria, virulence 

 of 'bacteria, 182 

 bodily conditions, general, 178. 



181 



local, 285 

 of different organs and tissues, 



racial, 180 



Pressure, effect of, on bacteria, 247 

 Prevention and cure of bacterial 



diseases, 16 



Products, bacterial: ammonium car- 

 bonate, fatty acids, indol, leu- 

 cin, phenol, skatol, sugar, 

 toxins, tyrosin, 129 

 pigment, 128 

 ptomaines, 159, 161 

 tyrotoxicon, 153 



Propionic acid (see Acid, proprionic) 

 Protargol, 250 

 Protective inoculation for anthrax, 



201, 335 



Asiatic cholera, 394 

 black-leg of cattle, 202 

 bubonic plague, 202, 323 

 erysipelas of swine, 202 

 fowl-cholera, 202 

 hydrophobia or rabies, 206 

 rinderpest, 201 

 small-pox,' 10, 200 

 tuberculosis, 362 

 typhoid fever, 381 



Proteus bacillus (see Bacillus proteus) 

 Protoplasm, appearance of bacterial, 



121 



Protoxoid, 224 

 Protozoa, pathogenic, in dysentery, 



malaria, 17 

 Texas fever, 177 

 trypanosomes, 408 

 amebae, 410 



Pseudo-diphtheria bacillus, 343 

 Pseudo-gonococcus, 311 



Pseudo-membranous inflammations 

 due to B. diphtheriae, 342, 345 

 B. dysenteriae, 307 

 M. lanceolatus, 307 

 streptococcus pyogenes, 296 

 Pseudo-pneumococcus, 307 

 Pseudo-tuberculosis, 362 

 Ptomaine poisoning, 159 

 Ptomaines, 186, 187 

 Puerperal fever, n 



B. diphtheria in, 345 

 S. pyogenes in, 296 

 Pure cultures, advantages of, shown 



by Koch, 16 



methods of obtaining, by animal 

 inoculation by dilution, by heat- 

 ing, 94 



by plating, 104 

 Purification of water by chemicals, by 



mechanical filtration, 141 

 by sand filtration, 140 

 Pus, blue, 318 

 cells, 282 



collection of specimens for ex- 

 amination, 107, 109 

 formation, 283 

 green, 318 



Putrefaction, 13, 133 

 Pyemia, 291 

 Pyocyanase, 190 

 Pyocyanin, 317 

 Pyogenic bacteria, as causes of various 



diseases, 288 



as secondary invaders, 287 

 in inflammation of middle-ear, 



289 



in pneumonia, 289 

 in suppuration, 284 

 Pyoktanin, 250 

 Pyosalpinx, 314 



Pyrogallic acid for cultivating anae- 

 robes, 91 

 Pyroxylin, 38 



Quarantine, early used by Italians, 9 



Rabies, caustive agent unknown, 170 



diagnosis of, 208 



Pasteur treatment for, virus fixe, 



206 

 Racial immunity, 199 



predisposition to infection, 179 

 Rats, acid-proof bacilli of, 362 



relation to bubonic plague, 322 

 Rauschbrand, vaccine for, 202 



