INDEX 



775 



Bacillus influenzae, in lobar pneu- 

 monia, 217 

 Bacillus mesentericus, levan from, 70 

 Bacillus palustris, 320 

 Bacillus palustris gelacticus, 319 

 Bacillus pneumoniae, 18 

 Bacillus salivarius septicus, 1, 20 

 Bacillus septicus sputigenus, 1 

 Bacillus subtilis 



dissociation, 154 



levan from, 70 

 Bacillus tuberculosis, polysaccharide 



of, 262 

 Bacillus typhi murium, as complicat- 

 ing factor in mouse tests, 190 

 Bacillus vulgatus, effect on Fried- 

 lander polysaccharide, 302 

 Bacteria-producing polysaccharide- 

 splitting enzymes. See Enzymes, 

 polysaccharide-splitting 

 Bacterial extracts, as antigens, 335- 



337 

 Bactericidal tests 



for potency of serum, 581 



serological reactions, 647-648 

 Bactericidins. See Pneumococcidins 

 Bacteriophage in dissociation, 150 

 Bacterium pneumoniae, 1 

 Bile. See Bile solubility; Chemo- 

 therapy 

 Bile salts and purpura-producing 



principle, 90 

 Bile solubility, 55-62 



and autolysis, 60-62 



and virulence, 56 



apocholic acid, 58 



bile-acid salts, 60 



cholic acid, 58 



dehydrocholic acid, 58 



dehydro-oxycholic acid, 58 



desoxycholic acid, 58 



electrolytes, effect, 59 



glycocholate, 55 



glycocholic acid, 58 



hypocholate, 55 



inhibition, 60 



non-electrolytes, effect, 59 



Bile solubility (cont.): 

 Pneumococcus mucosus, 56, 57 

 quinolate, 55 

 rabbit bile, 55 

 sensitization by ascitic fluid, blood, 



cholesterol, pleural fluid, 60 

 sodium cholate, 55 

 sodium dehydrocholate, 58 

 sodium taurocholate, 60 

 sputum, in type determination, 126- 



127 

 Streptococcus mucosus, 56 

 taurocholate, 55 

 taurocholic acid, 58 

 unsaturated fatty acids, 58 

 variants, 140-141, 149 

 virulence and, 56 

 Biochemical features of Pneumo- 

 coccus, 65-102 

 Biology of Pneumococcus, 30-64 

 Birds 



natural immunity, 341, 428 

 susceptibility to Pneumococcus, 196 

 Blake's method of type determina- 

 tion, 122 

 Blood 

 agglutinins, 357-361, 363-367 

 antibodies in blood during pneu- 

 monia, 437-442 

 as accessory substance in promot- 

 ing growth, 42 

 Pneumococcus in, 7, 8 

 precipitin in, in type determination, 

 125, 365-379 

 Blood agar as differential medium, 48 

 Blood cells, susceptibility to hemo- 

 lysin, 85 

 Blood cultures 

 in pneumonia, 227-229 

 technique, 628 

 Blood-group specific substance A, re- 

 lation to capsular polysaccharide, 

 287-288 

 Blood-optochin agar, laked, as dif- 

 ferential medium, 48 

 Blood platelets as affected by pur- 

 pura, 88 



