INDEX. 297 



Mesentericus, B. (sewage varieties), 151-2 



fuscus, B., 51 



ruber, B., 52 



vulgatus, B., 51 



Metchnikoff, method of isolating Sp. choleras from water, 253 

 Metchnikovi, V., 243 



Methods for isolation of Sp. cholerse from water, 253 

 Methods of testing water filters, 280 

 Milk, preparation of, 286 

 Miquel, multiplication of bacteria in water, 12 



B. thermophylus, 156 

 Multiplication of micro-organisms in water, 12 

 Mycoides, B., 53 



NEAPOLITANUS, B., 97 

 Nitrate-broth, preparation of, 288 

 Nitrifying organisms, 81 

 Nitrobacter, 85 

 Nitrosococcus, 85 

 Nitrosomonas, 85 

 Nubilus, B.. 62 



OCHRACEUS, B., 64 



Orange-red water, B., 67 



FAKES, method of isolating B. coli from water, 99 



Parietti, method of isolating B. coli and B. typhosus fiom water, 99 



Pasteur-Chamberland and Berkefeld filters, mode of action and utility 



of, 265 



Peptone solution, preparation of, 285 

 Pfeiffer's reaction, 184, 237 

 Phosphorescens, V., 246 



Piorkowski, method of isolating B. typhosus from water, 203 

 Potato-gelatine, preparation of, 287 

 Potato, preparation of, 285 

 Preparation of media, 7, 284 



,, water-plates, 9 



Prodigiosus, B., 57 



Proskauer and Capaldi, media as a test for B. typhosus, 166 

 Proskauer, chemical composition of water in relation to bacteria, 22 

 Proteus cloacinus, 140 



mirabilis, 126 

 vulgaris, 125 



Zenkeri, 126 



Zopfi, 127 

 Psittacosis, B., 196 

 Punctatus, B., 55 

 Pyocyaneus, B., 132 



QUALITATIVE bacteriological analysis, 41 

 Quantitative bacteriological analysis, 6 



