INDEX 



20S 



Delafield's hematoxylin, 44. 



Denitrification, solution for test- 

 ing, 40. 



Describing cultures, S3- 



Determination: of anaerobes in 

 milk, 158; of anaerobes in 

 sewage, 149; of B. coli and 

 streptococci in milk, 157; of 

 B. coli and streptococci in 

 water, 86, 147, 149; of bacteria 

 and spores in soil, i6s; of 

 species in water, 86; of spores 

 in soil, 165. 



Dextrose: agar, 26; litmus agar, 

 3S; litmus gelatin, 36; yeast 

 water, 33. 



Diastase, 63. 



Differentiation of B. typhosus and 

 B. coli, media for, 33. 



Digestion: of blood serum by soil 

 bacteria, 168; of casein by soil 

 bacteria, 169; of gelatin by 

 soil bacteria, 169. 



Dilution tables, i97> 



Diphtheria: antitoxin, 126; ba- 

 cillus, 124; group, 124; toxin, 

 126. ^ 



Directions for filling out culture 

 charts, 58. 



Discontinuous sterilization, 11. 



Disinfectants, 94. 



Doane-Buckley method, 161. 



Dog's blood serum, 33. 



Dorset's egg medium, 37. 



Drigalski and Conradi's medium, 

 34- 



Dry heat sterilization, 11. 



Dunham's peptou solution, 18. 



Dysentery bacillus, 112, 117. 



Effect: of pasteurization of milk, 

 88; of sterilization of milk, 88. 



Egg media, 37. 



Ehrlich's anilin gentian violet, 43. 



Endo's medium, 200 



Enriching method of Schottelius, 

 130. 



Enzym, 62; amylolytic, 62; 

 coagulative, 62; diastatic, 62; 

 gelatinolytic, 62 ; inverting, 

 63; production, 62; proteo- 

 lytic, 62; rennet, 63. 



Erlenineyer flask, 7. 



Estimation of colonies, 85. 



Examination: of air, 87; of ice, 

 148; of milk, 88, 151; of milk 

 for B. coU and streptococci, 157; 

 of milk for leukocytes, 160; of 

 milk for tubercle bacilli, 155; 

 of molds, 184; of rain water, 

 148; of sewage, 148; of soil, 

 163; of water, 86; of well 

 water, 147. 



Exerdses on infection and sterili- 

 zation, 91. 



Fermentation: abnormal, in milk, 

 139; chart, back cover; tube, 

 6; tube, gas production in, 

 81. 



Filament formation, 129. 



Filling culture tubes, 22. 



Film formation by yeasts, 186. 



Filter: Berkefeld, 10, 92; cotton, 

 92; folding of paper, 22. 



Filtration of culture media, 21. 



Finkler and Prior, spirillum of, 

 129. 



Flagella stain, 117. 



Formation: of alcohol, 187; of 

 amido compounds, 170; of 

 ammonia, 171; of film by 

 yeasts, 186; of indol, 114, 170; 

 of nitrates, 174; of nitrites, 

 171; of spores by bacteria, 128; 

 of spores by molds, 83; of 

 spores by yeasts, 80, 187. 



Formula for determining the 

 number of B. coli, streptococci, 

 and anaerobes in milk and 

 water, 86. 



Fowl cholera, bacillus of, 127. 



Friedlander's capsule stain, 109. 



Friedlander's pneumobacillus, 123. 



Frost's culture chart, 59. 



