INDEX OF SUBJECTS 



825 



Diplococcus pneumoniae, modes of in- 

 oculation with, 301 

 morphology of, 553 

 capsules in, 353-354 

 lancet-shape of cocci in, 353 

 pairing of cocci in, 353 

 pathogenicity of, 359 

 pneumonic complications and, 362 

 resistance of, 358 

 staining of, 355 



susceptibility of animals to, 370 

 toxic products of, 362 

 treatment of, 367 

 virulence of, 359 

 in animals, 359 

 in man, 361 

 Disinfectants, 73 



bactericidal strengths of common, 85 

 gaseous, 88 

 chlorine, 88 

 formaldehyde, 89 

 oxygen, 88 

 ozone, 88 



sulphur dioxide, 88 

 testing of efficiency of, 79 



by U. S. Public Health Service 



method, 80 



carbolic-acid coefficient in, 80 

 determination of antiseptic values 



in, 83 

 of disinfectant values in, 86 



table of, 85 

 factors in, 79 

 used in solution, 73 

 inorganic, 73 



acids, bases, and salts, 74 

 halogens and derivatives, 75 

 chlorid of lime, 76 

 tetrachlorid of iodin, 76 

 hydrogen peroxid, 76 

 potassium permanganate, 76 

 organic, 77 

 alcohols, 77 

 carbolic acid, 77 

 cresol group, 78 

 essential oils, 78 

 formaldehyde, 78 

 iodoform, 77 



Disinfection, practical, 86 

 of feces, 87 

 of hands, 87 

 of instruments, 87 

 of linen, etc., 87 

 of rooms, etc., 88 

 of sputum, 87 

 of urine, 87 

 Dissociation, electrolytic, 74 



relation between degree of, and 

 bactericidal powers of solutions, 

 74 



Dor sett egg medium, 130 

 Dourine, chemical course of, 748 



diagnosis of, by complement-fixation, 



749 



transmission of, 748 

 Drying in destruction of bacteria, re- 

 sistance to, 62 



DTNiM25,o, definition of, 205 

 Ducrey bacillus, 547 



cultivation and isolation of, 548 

 discovery of, 548 

 infection with, 547 

 pathogenicity of, 549 

 Dysentery, amebic. See Amebic Dys- 

 entery 



Dysentery, autopsy findings in, 442 

 occurrence of, 442 

 symptoms of, 442 v : 

 Dysentery bacilli, 435 



biological consideration of, 441 

 differentiation of, by Hiss, through 



agglutination tests, 440 

 through fermentation tests, 439 

 immunization with, 444 

 active, 444 



agglutinins in, 444 

 bactericidal substances in, 444 

 true toxins in, 445 

 passive, 445 

 in feces, 178 



investigation of, by Flexner, 436 

 by Hiss and Russell, 438 

 by Kruse, 437 

 by Lentz, 438 

 by Martini and Lentz, 438 

 by Ohno, 439 



