INDEX. 



679 



Cultures, test-tube, 162, 195 

 Cygmeus, 432 



DAVAINE, 21 

 Death-point, thermal, 67 

 Decolorizing solutions, 178 

 Decomposition, 33 

 Defensive proteids, 477, 589 

 Denitrifying bacteria, 36 

 Diaphragm, iris, 201 

 Diastatic enzymes, 37, 38 

 Differential diagnosis with aniline 



dyes, 214 



Differentiation between members 

 of the bacterium 

 diphtheria? group, 

 418 



Hiss's media, 418 

 Knapp's method, 418 

 Ljubinsky's method, 



240 



Neisser's method, 418 

 Diphtheria antitoxin, 422 

 standardization of, 424 

 Behring's method, 424 

 Ehrlich's method, 425 

 bacterium of, 399,401 



cultural peculiarities of, 403 

 experiments upon, 421 

 location in tissues, 410 

 method of obtaining, 399 

 modification in virulence, 414 

 morphology of, 401 

 pathogenesis of, 408 

 poison produced by, 412 

 principles of immunizing 



against, 542 

 staining, 408 

 toxin formation, 412 



potency of, 566 



histological changes accompany- 

 ing, 410 

 Diplococci, 59 

 Diplococcus intracellularis menin- 



gitidis, 330 

 Disinfectants and antiseptics, 89, 



654 



experiments with, 663 

 general considerations, 87 

 methods of testing, 654 



Disinfectants, methods of testing, 

 precautions to be observed, 

 657 



mode of action, 89 

 use of animals as test objects 



for, 661 



in the laboratory, 94 

 Disinfection, general considera- 

 tions, 87 



influence of temperature on, 91 

 inorganic salts in, 92 

 in the laboratory, 94 

 investigations of Kronig and 



Paul on, 91 

 modus operand^ 91 

 reliable agents for purposes of, 



94 

 selection of agents to be used 



in, 88 



Dissociation, electrolytic, 48, 91 

 Dunham's solution, 133 

 Durham's fermentation tube, 219 



milk-whey, 132 

 Dysentery, bacilli of, 463-472 

 agglutination of, 469 

 cultural peculiarities of, 466- 



469 



discovery of, 463 

 immune serum, 471 

 morphology of, 465 

 pathogenesis, 467 

 protective inoculation, 470 

 staining, 465 



"P BERTH, 27 



_Cj Ehrlich, 27, 574 



" side-chain " theory of im- 

 munity of, 600 

 and Morgenroth, 603 

 Electrolytes, 48, 91 

 Electrolytic dissociation, 48, 91 

 p]mboli of micrococci, 277 

 Emmerich and Fowitzky, 599 



and Low, 593 



and Mattei, 592 

 Endotoxins, 568 



liberation of, 568 



point of action of, 569 

 Enzymes, 36, 37, 102 



bacterial, 37 



