IO26 



INDEX 



Mucor, stolonifer, 49 



Mucous membranes, protection by, 689 



Mulberry, blight of, 955 



Mumps, 854 



Muskmelon, soft rot of, 986 



Must of grapes, 603 



Mutual influences, 297 



Mycelium, 36 



Mycetoma, 781 



Mycetozoa, 124 



Mycoderma, 61, 238 



aceti, in vinegar, 637 

 cerevisiae, in yeast, 563 

 vini, 77 



in fermented foods, 570 



on grapes, 608 



in pickles, 571 



in vinegar, 637 



in wine, 609 



in yeast, 563 

 in wine, 76 



Mycorrhiza, in soil, 363 

 Mycotic lymphangitis, 782-784 

 Myonemes, 127 

 Myxosporidia, 139 

 parasitic, 899 



NAGANA, 887 



Nasal cavity, protection by, 690 

 Nasturtium, spot of leaves, 976 

 Natural immunity in plants, 950 

 Negri bodies, 870 



staining of, 871 

 Neurin, 241 

 Neutral spirits, 63 2 

 Neutrality, 161 

 Nipa cinerea, 919 

 Nitrates, accumulation of, 394 



disappearance of, 394 



as food, 223, 226 



reduction in sewage, 335 

 Nitric acid, as preservative, 555 

 Nitrification, 389 



accumulation of nitrates, 394 



disappearance of nitrates, 394 



environmental relations, 391 



Nitrification, experimental study, 389 



nitric bacteria, 390 



nitrous bacteria, 390 

 Nitrite, as food, 224 



reduction, 337 



in sewage, 337 

 Nitrobacter, 391 



in sewage, 337 

 Nitrogen, addition to soil, 374 



in cells, 188 



cycle, 260 



as food, 223 



oxidation in soil, 351 



source in soil, 400 



utilization by molds in soil, 362 

 Nitrogen fixation (atmospheric), 400 



aerobic species, 402 



anaerobic species, 402 



cultures for inoculation, 414 



development of organisms, 408 



energy relations, 404 



entrance of organisms, 408 



environmental relations, 410 



inoculations, methods of, 412, 414 



mechanism, 410 



by molds in soil, 362 



non-symbiotic, 401 



physiological efficiency, 409 



resistance of plants to, 409 



specialization of organisms, 410 



symbiotic, 405 



theories of, 400 



variations of, 410 

 Nitrosococcus, 391 

 Nitrosomonas, 391 



oxidation by, 201 



in sewage, 337 



Nitrous acid, as preservative, 555 

 Noctiluca, phosphorescence of, 251 



miharis, nitrogen content, 189 

 Nomenclature, 117 

 Non-inheritance of disease, 685 

 Non-symbiotic nitrogen fixation, aerobic 

 species, 402 



anaerobic species, 402 



energy relations, 404 



