618 



INDEX 



Bacteriophage virulence, Otto and 



Munter method of determining; 



147 



, persistence of; 171 



, Pfreimbter, Sell and Pisto- 



rius method of determining; 147 



, range of; 168 



' , specificity of; 168 



, successive dilution method 



of determining; 142 

 , Werthemann expression of; 



145 



, vitality of; 283 



, volatility of; 8, 277 



Bacteriophagum intesiinale, living 



virus ; 355 

 Bacteriophagy, agglutination in; 73 



and ferment action; 371 



, antiserum inhibition of; 340 



, cause of mutations; 220 



, culture media for; 42 



— — , dark-field observation of; 113, 131 



, effect of agar on; 63 



, effect of age of bacteria on; 46 



, effect of antiseptics on; 71 



, effect of ascitic fluid on; 71 



, effect of bacterial metabolic 



products on; 128 



, effect of bacterial numbers on; 50 



, effect of bile on; 71, 552 



■, effect of calcium chloride on; 70 



, effect of chloroform on; 71 



, effect of colloids on; 65 



, effect of dyestuffs on; 67 



, effect of electrolytes on; 68 



, effect of gelatine on; 63, 216 



, effect of gums on; 63 



, effect of magnesium sulfate on; 



71 

 , effect of metabolic products on; 



48 



, effect of pH on; 43, 69, 184, 187 



, effect of phosphates on; 71 



, effect of potassium chloride on; 71 



, effect of pressure on; 63 



, effect of quinine on; 71 



, effect of salts on; 70 



, effect of serum on; 71 



Bacteriophagy, effect of sodium fluo- 

 ride on; 71 



, effect of sugars on; 70 



, effect of temperature on; 58, 183 



, effect of urine on; 71 



, effect of vaccinated medium on; 



127 



, effect of viscosity on; 63 



, effect on bacterial toxicity; 403 



, granule formation in; 130 



in absence of bacterial cells; 102 



in avian typhosis; 479, 490 



in bacillary dysentery, 439, 506 



in B. coli infections; 483 



in barbone; 497 



in flacherie; 507 



in mixed cultures ; 178, 208 



in plague; 503 



in plants; 487 



in staphylococcus infections; 483 



in streptococcus infections; 483 



in synthetic media; 46 



in typhoid fever; 451 



in typhus fever; 485 



, inhibition by antibacterial sera; 



400 



, mechanism of; 101 



, microscopic aspects of; 130 



, need of living cells for; 101 



of agglutinated cultures; 213 



on solid media; 76 



, phenomena simulating; 266 



, plaque formation in; 76 



, products of; 374 



, relation to autolysis; 6, 321 



, relation to bacteriolysis; 5, 13 



, relation to Twort phenomenon; 



13 



, rupture of bacteria in; 113 



, stained preparations in; 114 



, staining of bacteria during; 130 



, stimulation of bacterial growth 



by; 73 



, ultrabacteria formed in; 226 



with dead bacteria; 47 



Bail's hypothesis of bacteriophage; 325 

 Barbone, bacteriophage from; 247, 497 

 immunity, duration of; 526 



