898 



Ice, Germination of seed in 499 



Ice coating 634-37 



— formation. Favorable effect 510 



Icicles 634-37 



Icteriis 307-12 



— due to cold 309 



— of grapes 310, 402 



Idioplasm 31 



Igniarius 53 



Immunity 128 



Immunity and predisposition 27-31 



Inmnmization, Artificial 23-25 



1 nertia 39 



Inrtorescences. Proliferation 374 



— See also Blossoms ; IHowering 

 organs. 



Inflorescences of decorative plants. Dry- 

 ing 2CX3-07 



Inheritance. Nature t,2 



Inheritance of disease 31-34 



Inscriptions, Wounds due to 781 



Intra-molecular respiration 99, 313 



Intumescence, Internal 447 



Intumescence after copper spraying. .. .762 



— due to spraying injury 441 



— on Acacia longi folia 437 



— on Acacia microhotrya 437 



— on Acacia pcndiila 443 



— on Aphelandra 448 



— on beans 446 



— on cacti. Internal 430, 454 



— on Cassia toiiientosa 436 



— on Cymbidium Lou'i 444 



— on F.ucalyptus 444 



— on grapes 43cS 



— on Hibiscus 7'itifoliiis 448 



— on Mynnecodia rchiuata 437 



— on peas 446 



— on Pelargonium zotialc 438 



— on Ruellia 448 



Intumescences 432, 435-49 



Intumescentia 435 



I nundations 195-96 



Iron. Lack 307-12 



— Occurrence in waste water 753-54 



Iron silicates 251 



— sulfate 881 



Fertilization 402 



— sulfid 250 



Iron-spottedness of potatoes 391, 882 



Irrigation of soil 182-83, 196 



Ishikubyo of the mulberry 690 



Isolation of forest trees 227 



Iso/yyniin bifcrnatum 12 



Jadoo fibre 263 



Jahresbericht, Botanischer 60 



Jaundice 307-12 



— caused by drought 311 



lack of iron 307-12 



lack of nitrogen .310 



lack of potassium 310 



Jaundice (le jatiiie) of flax 283 



— of grapes 402 



due to excess of calcium. . . .310 



— of poplars 887 



Le jaune of flax 283 



Juglans 107 



Juniperus. Rooting of branches 254 



Jitiiipenis coiiiiiiunis 105 



— plioc'iicca. Bending by wind 475 



— Sabina 105 



Juvenile form, Retrogcssion to the 377 



Kainit 404 



"Knick" 192 



Krados 42 



Lactic acid, Injury from factories pro- 

 ducing 761 



Laelia. Specking 261 



Land. Conversion into swami)s 196-99 



Land plaster. See Gvpsum ; Plaster, 

 Land. 



Landslides. Effect 90 



Larch. Retrogression in its cultivation. 81-84 



Latitude. Greater differences 120-31 



Latitude of health 9 



Latitude of life 9 



Laurus 133 



Layering. Quinces 816 



Leaching. Soil 243 



Lead. Injuries due to 740 



Lead nanism 753 



— sand 243 



Leaf. Aurigo 434 



Leaf blight of conifers 883 



— casting diseases 349-52 



— curl of potatoes 395-99, 882 



— cuttings 378, 873-78 



— edges, dried by hydrochloric acid.. 724 

 - — emergences 434 



— fall in azaleas 352 



— — in Begonia fitclisioides 353 



in house plants 35^-53 



in Libonia floribunda 353 



See also Defoliation. 



— injuries 871-73 



— mould. Use with orchids 262 



— perforation 427, 430-32 



— scorch of vines 283 



— spot diseases of sugar cane 228 



— wilting 365 



Leaves. Bud formation 378 



— Cork outgrowths 427 



— Falling 346-49 



— Injury from wind 477 



— Splitting from frost 534-36 



— Sunburn in nature 641-43 



— See also Foliage. 



Leaves, Bitten 430-32 



— Perforated 430-32 



Legumes, Blasting i6o-6r 



Leguminosae, Advantages to soil of 



growing 232 



Leguminosae seeds. Hard shells 420-22 



Light lines 420 



Lenticels , 215 



— in potatoes 369 



Lepidiiiiu sativum 74 



Leptosphaeria. Lodging of grain stalks • 



clue to 542 



