412 



INDEX 



Mirror, concave, 67 



plane, 67 

 MOHLER, J. R. and EICHHORN, A., 



329 

 MOHLER, J. R., EICHHORN, A. and 



BUCK, J. M., 329 

 Moist chamber, preparation of, 



80,81 



culture, 100, 109 

 Moisture, 



relation to microbial destruc- 

 tion by heat, 202, 203 

 Mold colony, examination of, 105, 



107, 109 

 growth, characteristics of, 100- 



104, 106, 108 



spores, germination of, 78-80 

 Molds, 100-113, 182 

 in air, 221 



influence of light on, 206, 207 

 microscopical examination of, 



105 



pathogenic nature of, 113 

 resistance to heat, 202 

 study of, 107-111 

 MOORE, V. A., 156, 302, 305 

 MOORE, V. A. and FITCH, C. P., 



301, 302 

 Mordant for flagella staining, 94, 



375 

 MORTENSEN, M. and GORDON, J., 



291 

 Moss, Ceylon, 37 



Jaffna, 37 



Motility, 74, 75, 86, 129 

 Mounts, permanent, 372 

 Mouth, microflora of, 150, 151 

 Mouths of culture tubes, flasks, 



sterilization of, 6 

 Movement, Brownian, 75 

 molecular, 75 

 rate of, 74 

 Mucilage of Ps. radicicola, 258 



Mucor, 63, 100 



stolonifer, 100 

 Mucous membrane, microflora of, 



150, 151 



Mucus, staining of, 87 

 Muffle furnace, 6, 7 

 MUIR, R. and RITCHIE, J., 163 

 Mutual relationship, 215-217 

 Mycelium, 79, 100-102, 105, 107- 



110, 112, 113 



Mycoderma, 169, 184, 195, 196 

 Mycodermata, 114 

 Myriagram, 380 

 Myriameter, 379 



N 

 a-naphthylamin, 133, 249, 251, 



371 

 Needles, platinum, sterilization 



of, 6 



Nephelometer, 319 

 Nessler's solution, 133, 249, 251, 



371, 372 



Neutralization, 20, 22, 25 

 Newspaper, uses of, 17, 18 

 Nitrate peptone solution, 19, 44 



reductase, 181 



Nitrates, reduction of, 44, 131, 

 133, 134, 138, 181, 251-253, 

 363 



test solutions for, 371 

 Nitrification, 255 

 in solution, 249-251 

 studies, media for, 353, 354 

 Nitrifying bacteria, 153, 353 

 Nitrite reductase, 181 

 Nitrites, 43, 44, 133, 134, 138, 250, 



252 



reduction of, 181 

 test solutions for, 371 

 Nitrogen as food, 172, 173 

 atmosphere of, 157, 165 

 cycle, 255 



