INDEX AND GLOSSARY 



Aberson, 184. 



Acetic acid, 465. 



Acetic-acid bacteria, 44, 466, 467, 468 



Acid media, 44. 



Acids, organic, 292. 



Adametz, 376. 



Aerobic bacteria (bacteria requiring 

 an abundant supply of air), 38, 40, 

 117, 139, 309, 312, 345. 



Air, bacteria in, 45-54. 



Albumoses (compounds formed in the 

 decomposition of proteids), 420. 



Alfalfa, 131, 230, 231. 



Algae (minute green plants), 30, 88, 

 203. 



Alinit (a commercial culture of bac- 

 teria at one time sold in Germany, 

 and supposedly capable of fixing at- 

 mospheric nitrogen), 235. 



Alkali salts, 78. 



Alkalinity, 44. 



Altitude, effect of, on soil bacteria, 139. 



Alum method, 84. 



American Brie, 427. 



Amide (Amides, or Amido-compounds 

 substances formed in the decompo- 

 sition of proteids and more simple 

 in composition than albumoses), 

 417, 420. 



Amiro-compounds, 33. 



Ammonia, 192, 193, 321, 331, 333; 

 salts of, 172. 



Ammonification, 161, 162, 320, 324. 



Ammonifying bacteria (bacteria capa- 

 ble of decomposing nitrogenous sub- 

 stances of animal or vegetable ori- 

 gin, with the formation of ammonia) 

 162. 



Ammonium carbonate, 322-324. 



Ammonium nitrate, 193. 



Anaerobic bacteria, 40. 



Aniline dyes, 9. 



Animalcules, (a name formerly em- 

 ployed to designate all very small 

 living organisms), 71. 



Animal excreta, tubercle bacilli in, 

 399. 



Anthrax (a bacterial disease usually 

 fatal to cattle and sheep and due to 

 a specific germ, Bacillus anthracis), 

 8. 



Antitoxins (substances that can coun- 

 teract the effect of toxins, or poi- 

 sons, produced by bacteria), 10. 



Appert, 433. 



Artesian wells, 95. 



Ascococcus mes enter aides, 449. 



Attenuated (a term employed to 

 designate cultures of bacteria that 

 have been weakened by unfavor- 

 able conditions of growth), 37, 38. 



Atwater, 210. 



Automatic scavenger, 113. 



Available substances, 182. 



Azotobacter (a group of aerobic bac- 

 teria possessing a very pronounced 

 power of fixing atmospheric nitro- 

 gen), 200-204, 235, 272, 289, 302. 



Babcock, 419. 



Bacilli (rod-shaped bacteria possess- 

 ing the power of motion), 15. 



Bacillus aerogenes, 370, 384, 429; 

 casei E, 373, 374; coli communis 

 74, 370, 444, 445; cyanogenus, 375; 

 Ellenbachensis,235; fluorescens lique- 



(473) 



