INDEX 



Indigo, 557 



Indirect division of cell, 28 



Indol, 170 



Infantile paralysis, 811 



Infection, air-borne, 664 



animal carriers of, 667 



avenues of, 669, 674 



carriers of, 667 



cause of, 675 



channels of, 659 



contact, 663 



defined, 659 



droplet, 665 



dust, 665 



factors influencing, 624 



food, 490, 666 



human carriers, 667 



manner of entering body, 664 



milk-borne, 400, 666 



number of organisms involved in, 

 674 



resistance against, 675 



routes of, 669 



soil, 666 



sources of, 664 



variations of, 672 



virulence of, 674 



water-borne, 665 

 Infectious mastitis, 738 

 Inflammatory processes, 693 

 Influenza, 770 

 Infusoria, 136, 843 

 Inheritance of disease, 685 

 Inspected milk, 367 

 Intestines, 496 



methods of study, 504' 



microorganisms of, 256, 499 



protection by, 691 

 Intracellular fermentation, 189 

 Introduction, vii, ix 

 Inulase, 194 



Invertase, 190, 191, 194, 195, 200 

 Invisible organisms, 116 



determination of, 119 



evidences of, 118 

 lodococcus, 497 

 s6 



lodococcus magnus, 497 



parvus, 497 



vaginatus, 497 

 lodo-iodide solution, 45 

 Iron in soil, 361 

 Isogamy, 34, 128 



fertilization, 128 

 Isoprecipitin, 718 



JAM, 455 

 Jellies, 455 



KALA azar, 825, 826 

 Karyokinesis, 28 



bacteria, 87, 88 



molds, 43 



protozoa, 127 



yeasts, 66 

 Karyosome, 17 

 Katabohsm, 189 



theory of, 204 

 Katalase, 202 

 Kepfir, 443 



Kinetonucleus, 18, 132 

 Koji, 532 

 Kumiss, 442 



LABOULBENIALES, 724 

 Lacnosterna, 634, 635 

 Lactacidase, 200 

 Lactase, 194, 196, 200 

 Lactic, bacteria, 378 



fermentation, 164, 165 

 beer, 526 

 milk, 378 

 pickles, 554 

 wine, 512 

 Lakes, microorganisms in, 262 

 Lamblia, 133, 499 



intestinalis, 133, 134 

 Lamellicornia, 651 

 Laverania malarias, 135 

 Leaf-spot of cucumbers, 613 

 of larkspur, 614 

 of plum and peach, 614 

 of sugar beets, 615 



