318 



HORTICULTURE FOR SCHOOLS 



Leaf characteristics of grapes, lab- 

 oratory study, 222 



cross-section of, 31 



-cuttings, 58 



-roller, apple tree, 231 

 Leaves, functions of, 31 



netted- veined, 43 



parallel- veined, 43 



parts of, 30 



structure of, 30 



types of, 30 



Lecanium scale described, 237 

 Leek, 102 

 Legumes, 109 



Lemon flavoring extract, a by-prod- 

 uct, 291 



Lepidoptera, 224 

 Lettuce, 107-108 

 Leucoplasts, function of, 20 

 Life history of codlin-moth de- 

 scribed, 228 



of insects, 228 



of leaf-roller, 232 



of webworms, 234 



of woolly aphis, 239 

 Lime-sulfur for shot-hole fungus, 256 



spray for anthracnose, 214 

 Linden, dissemination of seed of, 44 

 Lippia canescens, 306 

 Live-stock products, injury by in- 

 sects, 223 

 Living plant, 16 

 Location for orchard, 120-122 

 Locusts, reference to in Old Testa- 

 ment, 223 



Loganberry, origin of, 211 

 Loquat, a semi-tropical fruit, 204 

 Lovett strawberry as pollinizer, 177 



M 



Machinery for spraying, 138 

 Maggot of fly, 226 

 Mahonia Aguifolium, 304 

 Mallet-cutting, 63 

 Management, orchard, 117 

 Map of nature's planting, 309 

 Maple, 306 



dissemination of seed of, 44 

 Marketing, 278 



and selling stage, 260 



cost of, 287 



of citrus fruits, 198 



system, defects in, 280 

 Market preparation, 260 



prices, study of, exercise, 116 



study of, exercise, 273 

 Marmalade, a by-product, 291 

 McLaren, John, 308 

 Measurement, water, 149 

 Measuring worms, 233 

 Mechanical injury, effect on viabil- 

 ity, 47 



Media for germination, 48 

 Membership in cooperative societies, 



282 



Mendel, Gregor, an Austrian monk, 8 

 Mendel's law, 9 

 Metamorphosis, 225 



examples of, 225 



of fly, 226 



of grasshopper, 226 



reasons for, 226 

 Micropyle, 40-41 



Mildew on currant and gooseberry, 

 214 



on roses, etc., 252 

 Milkweed, dissemination of seed of, 



44 



Miners' inch, 149 



Miscible oil for control of leaf- 

 roller, 232 

 Mistletoe, dissemination of seed of, 



44 

 Mite, brown, 241 



control of, 242 



two-spotted, 241 



Moisture, effect of, on young plants, 

 52 



in relation to orchards, 118 



relation to germination, 47 

 Monocotyledonous plants, 43 

 Monoecious, definition of, 160 

 Mormons and irrigation in Utah, 

 143 



