Pear,44,49,59,81,130Pear fire-blight,130Peas,95,104,251-254Perennials,71,112,116,118,260Petal,43Phosphoric acid,23,24,186,188,196,216,244,254Phylloxera,157,158Pipette,305Pistil,43,44Plant, the,25,39Plant disease, cause of,122nature of,122prevention of,122,129Plant food,18,19,20,21,24from air,39from soil,29kinds of,33Plant louse,150,152,167,168Plant seeding,59,109Planting a tree,76-87Plant-propagation,51-59by buds,51Plants grown from seed,109from bulbs,109Plow, right way to,11Plum curculio,156,157Plums,43,59,81,164Pollen,43,47,48Pollination,45-48by hand,49cross-,49,50grape,52,53Potash,23,24,186,188,196,207,216,244,246,254Potato, sweet,204,205white, or Irish,56,57,206-209Potato beetle,170,209Potato blight,138,209Potato scab,136,205,209Potato seed,56,57Poultry,282-286Prevention of plant diseases,129,130Propagation of plants by buds,58by cuttings,52Protein,212,291,294,295,297Pruning,83,84-87root,85,86Pupa,147,150,151Purity of seed,72-75Pyrethrum powder,165Quince,59Radish,95Raspberry,59Ration, balanced,294,295Ratoon,225Red raspberry,59Rice,231-232Roads,332,337Root-hairs,24,25,27,29,32Root-pruning,86Roots,25,26,27,28Root-tubercles,30,37Rose,109,121,124Rot of fruit,122Rotation of crops,8,20,21,33-37,189,211,217,219,258Rye,213-215San Jose scale,152,153Sap current, the,40Scab,136,209Schoolhouses,334Scion,79,81,82Seed,42Seed purity,72-75Seed vitality,72-75Seed-germination,74Seed-germinator,74Seeding,60,114Seed-selection,56,62,64,66in the field,56,62,68of corn,66of cotton,60,61of potatoes,56,57of wheat,64,65Seed-selection plat,63,64Selection of seed.SeeSeed-selectionSepal,43Sheep,276-279Silo,295Smuts,134,135Soil,1bacteria in,24deepening of,8definition of,1drainage of,14Soil, how formed,2,3how water rises in,13improving,17manuring of,21moisture of,9origin of,1particles of, magnified,10and plant,25retention of water by,12tillage of,6virgin,17,18Sowing seed,94Soy beans,256-260Spiders, red,121Spiracles,145Spores,123,124,125,130,135prevention of,130Spraying,137,138,139,155,156,157,209Spraying outfit,138,155,168,171Squanto,21Squash,45,95Squash bug,168Stamen,43-48Starch,40Starchy food,291Stigma,44-45Stock,79,82Strawberry,45,55,59,90Style,43Subsoil,1Subsoiling,10Sugar,40Sugar plants,217Sugar-beet,218-221Sugar-cane,221Sugar-maple,217Sulphate of ammonia,211Sun-scald,84Sweet pea,114,115Sweet potato,56,57,111,204-205Swine,279-282Tent caterpillar,162Tile drain,15,16benefits of,14Tillage,6-9,19,28,200Timber,232-235enemies of,233Tobacco,189-192Tobacco worm,170,172Tomato,40,105Tongue grafting,79,80Tools,313Topping tobacco,191Trap plant,168Tree, manuring of,26Truck crops,98-107Tubercle,30,32Tull, Jethro,6Turkeys,282Turnip,95Twig girdler,162Typhoid fever, germ of,129Vetches,255-257Vitality of seed,72-75Vitamines,298Wasp,146Water,10absorption of, by plants,10retention of, by soil,9rise of, in soil,13saved by plants,10saved by soils,12Watermelons,106Wax,79Weathering,4,7Weeds,69,74annual,69biennial,70perennial,71Weevil,169cotton-boll,173-177plum,156Wheat,192-197selection of seed,63yield of,64Why feed animals,290Wiltcotton,142watermelon,107Window box,118Window-garden,119-121Window-gardening,119Worn-out land, reclaiming of,19,244Yeast,127,128