INDEX 



403 



Dextrin, 179 

 Dextrinase, 179 



Dextrose, 23, 156, 170, 180, 182, 

 184, 195, 196, 351, 358, 359 

 fermentation of, 180, 182 

 influence on denitrification, 252 

 Dextro-zymase, 180, 182 

 Dialysis, as a sterilizing agent, 



5, 13 



Diastase, 179 

 Diatomaceous earth, 12 

 Dichotomous branching, 100, 101, 



348 



Dilution flasks, 52, 54 

 method, loop, 49-52 

 qualitative, 49-52 

 quantitative, 52-56 

 straight needle, 51, 107, 115 

 Diphenylamin, sulfuric acid solu- 

 tion of, 249, 371 

 Directions, laboratory, x 

 Disaccharides, enzymes of, 180, 



182 



Discoloration in water, 237 

 Discontinuous heating, 8-10 

 Diseases, animal, 295-329 

 plant, 291-294 

 producing bacteria, 153 

 Dish, evaporating, use of, 20-22 

 Dishes, deep culture, wrapping of, 



18 



Petri, wrapping of, 17, 18 

 Disinfectant, phenol coefficient of, 



210-213 

 Disinfectants, ix, 5, 14, 15, 236- 



238, 309 

 DISTASO, 157 

 Distilled water, 20 



micron 1 ora of, 152, 153 

 DON, J. and CHISHOLM, J., 227, 



239 



DORSET, M., MCBRYDE, C. N. 

 and NILES, W. B., 315 



Dourine, diagnosis of, 329 

 Draw-tube of microscope, 65 

 Drench, use of, 300 

 Dunham's solution, 19, 43, 44, 



125, 129, 172 



Durham's fermentation tube, 119 

 Dust, microorganisms in, 146 

 Dyes, acid, 87 



basic, 87 



organic, reduction of, 181, 184 



saturated alcoholic solution of, 

 87 



stock solutions of, 87 



E 



Earth, diatomaceous, 12 



Egg, albumin, liquefaction of, 24 



as a medium, 19, 20 



use of, in preparation of media 



30 

 Ehrlich's method of testing indol 



production, 132, 133 

 Electrolytes, 53, 195, 196 

 Emboli, from injection, 299 

 Emulsin, 180, 182 

 Endo agar, 361-363 



-enzymes, 178, 190 

 Endospores, 114, 121 

 End-point, 20 



Enzyme, carbohydrate-coagulat- 

 ing, 181 



action, pure, 188 

 Enzymes, 179-194 



acting anaerobically, 179 



classification of, 179-181 



coagulating, 179, 181, 185, 186, 

 193, 194 



effect of heat on, 186 



extracellular, 178 



formation of name of, 179 



hydrogen-producing, 23 



hydrolytic, 178, 179, 180, 182- 

 185 



