INDEX— VOLUME II STARTS ON PAGE 971 



Neisseria, 531-556 



antigenic structure of, 535, 538, 545 

 biochemical reactions of, 534 



maltase in senim, 534 

 chemical fractionation of, 535, 539, 547 

 classification of, 536 

 growth requirements of, 532 

 pathogenicity of, 535, 539, 548 

 pigment formation by, 534, 536, 556 

 resistance of, 534 

 tabulated reactions of, 554, 555 

 variation in, 534, 536, 537, 544 

 catarrhalis, 531 et seq., 551 

 flavescens, 531, 556 

 gonorrhcese, 531 et seq., 543-550 



differentiation of from N. meningitidis, 



550 

 disease caused by, 1454-1460 

 in suppurative lesions of the urinary 



tract, 1500 

 media for cultivation of, 543 

 toxin production by, 549 

 meningitidis, 531 et seq., 537-543 

 autolysin of, 538 

 differentiation of from N. gonorrhceee, 



550 

 disease caused by, 1431-1449 

 toxin production by, 541 

 pharyngis, 635, 537, 553 

 pharyngis cinerea, 531, 553 

 pharyngis flava i, ii and Hi, 531 etseq., 552 

 pharyngis sicca, 531 et seq., 553 

 Neisser-Wechsberg phenomenon, 228 

 Neonatal diarrhoea, 1583 

 Newcastle bacillus, 690. See Shigella 

 Newcastle disease of fowls, 1658, 1969 

 Niacin. See Nicotinic acid 

 Nicotinic acid as bacterial vitamin, 67, 163 

 Nicotinamide, 165 

 Nitrate reduction, methods of examination for, 



368 

 Nitrates, effect of on anaerobic growth, 54 

 Nitrobacter, 504 



winogradskyi, 504 

 Nitrogeii-fixuig bacteria, 497 

 Nitrogenous constituents of bacteria, 43 



metabohsm of bacteria, 55 

 Nitrosococcus americanus, 503 

 Nitrosomonas, 502-504 



europosa, 503 

 Nocardia, 374, 382 

 Nocard's bacillus, 1873 

 Noma, 1810 



Nomenclature of bacteria, 310-323 

 Normal curve, 985 

 Normal flora of body, 1984-1999 



ahmentary tract, 1986-1992. See also 

 Intestines 



factors affecting, 1988 

 blood and internal organs,. 1998 

 conjunctiva, 1998 

 factors affecting, 1984-1985 

 mouth, 1986 

 respkatory tract, 1992-1996 



persistence of species in, 1995 

 sMn, 1997 

 technique of examination, 1984 



Normal flora of body, tonsils, 1992 



urethra, 1997 



vagina and vulva, 1996 

 Nose, arrest of bacteria in, 1023 



normal flora of, 1992 et seq. 

 Notatin, 178 

 Nuclear apparatus of bacteria, 19 



as genetical postulate, 289 

 Nucleic acid, effect of on antibody formation, 



1123 

 Nuclein, increase of opsonic power following 



injection of, 1175 

 Null hypothesis, in statistical reasoning, 1000 

 Nutritional requirements of bacteria, 61 



and essential nutrients, 63 



and evolutionary series, 62 



and growth stimulants, 63 



as basis of classification, 312 



Oagglutinins in diagnosis of enteric fever, 

 1529-1540 

 in relation to antityphoid inoculation, 

 1537 

 antigens, 277, 283 

 Ohara's disease. See Tularaemia 

 Oils, animal, effect of on bacteria, 137 



essential, effect of on bacteria, 136 

 Omentum, role of in peritoneal infections, 1040 

 Oosporosis, 1270 

 Opacity of a bacterial suspension, factors 



determining, 81, 85 

 Ophthalmia neonatorum, 1455, 1460 

 Ophthalmia, periodic, of horses, 1943 

 Opsonins, 194, 235. See also Antigen-anti- 

 body reactions 

 increase of, induced by injection of 



nuclein, 1175 

 non-specific, 235, 237 

 Optimal antigen-antibody ratio in agglutina- 

 tion, 212 

 in i^recipitin reaction, 201 et seq. 



with constant antibody, 202, 204 

 with constant antigen, 202, 204 

 relation of to chemical equivalence, 204 

 of constant- antigen ratio to constant- 

 antibody ratio, 202, 209 

 Optimal proportions in agglutination, 213 

 in complement fixation, 233 

 in precipitation, 201 

 Oral sepsis in relation to endocarditis, 1515 

 Organic acids as dismfectants, 119 



as substrates for fermentation tests, 706 

 Ornithosis, 1874 

 Oroya fever, 903, 1796 

 Osmotic effect of salts on bacteria, 127 

 Osteomyehtis, 1496, 1506 

 Osteophagia, 1621 

 Otitis media in rats, 1499 

 Owls, virus disease of, 1971 

 Oxalates in metabolism of Pf. whitmori, 493 

 Oxalates, production of by Pf. whitmori, 492- 



493 

 Oxidase, bacterial, 48 



Oxidation-reduction potential, measurement 

 of, 50 

 reactions in bacterial metabolism, 50, 71 



