Index 



351 



Crcrn inaiuucs, 25'3, 317— 320 



tor control of scab, 296 

 Croon sulfur haotoria, 67 

 Crowth-proinoting suhstancos, 67, 33 1 



llnrtmanclla liyaliiui. 92 



Hclniinthosporium, 278, 293, 328 



H. grainincum, 287 



H. sativum, 278, 293 



H. teres, 278 



Heniicelluloses, doooinposition of, 

 11.5-117 



Heteroantagonistio, 267 



Hctcrodcra radicicoUi, 290 



Het. schaclUii, 93, 290 



Heteromita, 92 



H. glohosus, 92 



Heterotrophic bacteria, 68-76 



Higher fungi, 85-86 



Hippuric acid decomposition, 170 



Historical, 1-28 



Hookworm disease, 286 



Hookworm lar\ae, 93, 286 



Hormones, 168, 334 



Horse manure, 118, 314 



Horse manure compost, 152 



Host plant specificity, 219 



Hot fermentation of manure, 53, 309 



Human pathogens in soil, 282 



Humic acids, 125 



Huniicola, 178 



Humicolous fungi, 83 



Humification, 16 



Humus, analysis of, 133 

 and soil fertility, 144-147 

 decomposition of, 131, 132, 137- 



142, 143, 157, 159 

 effect on leguminous plants, 221 

 effect on nitrogen fixation, 204-205 

 formation of, 105-106, 130-133, 



143 

 importance of, 128 

 in green manure, 319 

 in soil, 133, 134, 142-144 

 nature of, 124-130, 142 



Humus fungi, 84 



Humus podzol, 127-130 



Hydrogen oxidation, 244 

 as source of energy, 60, 68 



lli/diDfii'notnotui.s (inilis, 72 

 Ihuroxylamine, 186 

 Hxphao in soil, 45 

 H\ pliomycctes, 86 

 HvpogcoTis fungi, 83 



"Incrustants," 99 



Indigotin, 11 



Industrial microbiology, 2-3 



Infusoria, 90 



Inoculants, 301 



Inoculation, 223 



of soil, 227, 330 



of sulfur, 63 

 Interrelationships in soil, 342 

 Iron transformation, 241 

 Isoantagonistic, 267 

 Itcrsonia ferruginea, 77 



Japanese beetle lar\ac, 93 



Klebsiella pneumoniae, 268 



Lactarius turpis, 86 

 Lawes, Sir John, 3 

 Lecithin, 236 



decomposition of, 168 

 Legumes, use of, 226-228 

 Leguminous plants, 14, 208 

 Lenzites, 121 

 Lepiota granulosa, 86 

 L. procera, 86 

 Liebig, J. von, 9 

 Life cycle of nodule bacteria, 214- 



215 

 Lignicoleous fungi, 83 

 Lignin, decomposition of, 119-122, 



263 

 Lignin-decomposing fungi, 84 

 Liming of soil, 160 

 Lipman, J. G., 19 

 Li\ing matter in soil, 29 

 Lohnis, F., 19 

 Lycoperdon caelatum, 86 



Magnesium, transformation of, 241 

 Manganese as source of energy, 60 

 Manure, and soil fertility, 311-312 

 composition of, 304 



