882 



INDEX 



Leben, 444 



Leishmania, donovani, 131, 825 



tropica, 848 

 Leishmaniasis, 825, 826 

 Leprosy, 774 

 Leptothrix, 36 



buccalis, 497 

 Lettuce blight, 593 

 Leucin, 170 



Leucocytes, action on microorgan- 

 isms, 612 

 Leucocytes in milk, 404 

 Leucocytotoxins, 710 

 Leucocytozoon lovati, 27 

 Leucoplastids, 20 

 Light, heliotaxis, 224 



heliotropism, 224 



influence of, 222 



upon organisms in water, 263 



phototaxis, 224 



phototropism, 224 



production, 188 



radium rays, 225 



X-rays, 225 

 Lime in soil, 314, 354 

 Linin, 123 



Lipase, 194, 197, 200 

 Locomotion, 24, 124 

 Louping iU, 812 

 Luetin, 586 

 Lungs, 691 

 Lysinogen, 705 ' 

 Lysins, bacterio-, 704 



cyto-, 704 



hemo-, 704 



structure of, 706 

 Lyssa, 814 



MACROGAMETES, 128 

 Macronucleus, 18 

 Magnesium in soil, 354, 356 

 Malaria, 834 

 Malignant edema, 785 

 Mallein, 585 

 Malta fever, 740 

 Maltase, 194, 196, 200 



Manganese in soil, 362 

 Mannitic, bacteria, 514 



fermentation, 514 

 Market milk, 366 

 Mead, 531 

 Measles, common, 801 



German, 801 

 Meat, canned, 465 



jerked, 456 



poisoning, 491 



preserved, 480 



refrigeration, 473 



sterilization, 465 

 Mechanical effects, influence of, 227 

 Media, beer as, 524 



influence of physical structure, 

 181 



must as culture, 506 



soil as culture, 290 



wine as culture, 506 

 Melolontha vulgaris, 643, 649 

 Membrane, 23 



bacterial, lor 



cell, 46, 100 



undulating, 25, 124 

 Meningitis, cerebro-spinal, 736 



epidemic, 736 

 Merozoits, 126 

 Mesomitosis, 34, 127 

 Metabiosis, 242 



Metabolism, action of microorgan- 

 isms on, 189 



mechanism of, 189 



and microorganisms, 141 



physical products of, 187 



products of, 158 



in protozoa, 143 



theory of, 204 

 Metachromatic corpuscles, 20, 88 



bacteria, 88, 99 



molds, 43 



protozoa, 146 



yeasts, 61 

 Metamitosis, 30 

 Metaphase, 28 

 Methane, fermentation, 150 



