INDEX 



209 



Raulin's solution, 42, 185. 

 Reaction: indol, 114, 170; nitrites; 



114, 170; nitroso-indol, 130; 



of bacteria on neutral red 



broth, 150; of culture media, 



18; of milk, 62. 

 Reduction of nitrates, 177. 

 Rejuvenation of cultures, 149. 

 Rennet enzym, 62, 

 Rinderpest, 127. 

 Roquefort cheese, 184. 

 Rosenow's capsule stain, no. 

 Russell's medium, 200 



Saccharomyces: cerevisiae, 78, 

 i8g; ellipsoideus, i8g; pas- 

 torianus, i8g. 



Sacs, collodion, 173. 



Safranin, 44. 



Samples of water, collection of, 

 84. 



Salt rising bread, 191. 



Sarcina lutea, 97, 159. 



Scheme for routine study, 50. 



Schottelius enriching method, 130. 



Schweineseuche, 127. 



Sewage: anaerobes in, 149; con- 

 tamination of, 86; examination 

 of, 148. . 



Sketches of streak and stab 

 cultures, 64, 65. 



Silica jelly, 38. 



Snow, examination of, 148. 



Soil: bacteria and spores in, 165; 

 examination of, 163; samples, 

 165; samplers, 165. 



Solution: Dunham's pepton, 18; 

 for assimilation of atmospheric 

 nitrogen, 39; for denitrification 

 of nitrates, 40; for formation of 

 nitrates, 39; for formation of 

 nitrites, 38; Giltay, 40; Gram's 

 iodin, 43; litmus, 35; nitrate, 

 41; normal, 20; Parietti's, 34; 

 pepton for ammonification, 40; 

 Raulin's, 42; Winogradsky's, 37. 



Solutions, staining, 43. 



Species determination in water, 

 86. 



Spirillum: cholerae, 133; group, 

 129; metchnikovii, 129; of 

 asiatic cholera, 133; of Finkler 

 and Prior, 129; tyrogenum, 129. 



Spore; formarion of yeasts, 80, 

 187; staining, 128. 



Spores: germination of, 83; in 

 soil, 168; of bacteria, 128; 

 of molds, 83 ; of yeasts, 80. 



Stain: flagella, 117; Friedlander's 

 capsule, 100; Gram, 77; Loffler's 

 flagella, 109; Pappenheim, 45; 

 Rosenow's capsule, no; spore, 

 128; Welch's capsule, no; 

 Welch's capsule, modified, 138. 



Stained' preparation, 76. 



Staining: acid-proof bacilli, 132; 

 capsules, 109; solutions, 43. 



Standard method: for preparing 

 agar, 30; for preparing broth, 

 30; for preparing gelatin, 30. 



Staphylococcus: albus, los; au- 

 reus, 95, 100, 105. 



Starch iodin test, 172. 



Steam sterilizers, n. 



Sterilization, 10; by. chemicals, 

 n; by dry heat, 11; by moist 

 heat, n; discontinuous, n; 

 intermittent, 11; of blood 

 serum, .16; of glassware, 11; 

 and pasteurization of milk, 88, 

 is8; of milk, 89, 158; phe- 

 nomena of, 91. 



Sterilized milk, 158. 



Sterilizer: Arnold steam, 12; 

 hot-air, n. 



Streptococci: in milk, 157; in 

 water, 86. 



Streptococcus: lacticus, 100; py- 

 ogenes, 105. pneumeae, 109. 



Study: of acetic-acid bacteria, 

 192; bacterial, of milk, 88, 162; 

 of molds, 83; of molds, yeasts, 

 and torulae, 78; of pigments, 

 100; of soil bacteria, 165; of 

 yeasts, 79. 



Subcutaneous injection, n6. 



