Ninth week. WHAT PLANTS TAKE FROM THE SOIL AND HOW THEY DO THIS. Use of roots. Proof that it holds plant in position, takes in water and mineral matter, and in some cases stores food. Influence of gravity and water. Labeled drawing of root hair. Root hair as a _cell_ emphasized. Osmosis demonstrated. Tenth week. COMPOSITION OF THE SOIL. Demonstration of presence of mineral and organic substances in the soil. What root hairs take from the soil. Mineral matter necessary and why. Importance and sources of nitrogen. Soil exhaustion and its prevention. Nitrogen-fixing bacteria. Review bacteria of decay. Rotation of crops. Eleventh week. UPWARD COURSE OF MATERIALS IN THE STEM. Demonstration of pea seedlings with eosin to show above. Demonstration of evaporation of water from a leaf. Action of stomata in control of transpiration. Cellular structure of leaf. Demonstration of elodea to show cell. Twelfth week. SUN A SOURCE OF ENERGY. Heliotropism. Demonstration. Necessity of sunlight for starch manufacture. Necessity of air for starch manufacture. By-products in starch making. Oil manufacture in leaf. Protein manufacture in plant. Respiration. Thirteenth week. REPRODUCTION. Necessity for (_a_) perpetuation, (_b_) regeneration. Study of a typical flower to show sepals, petals, stamens, pistil. Functions of each part. Cross and longitudinal sections of ovary shown and drawn. Emphasis on essential organs. Pollination, self and cross. (NOTE. At least one field trip must be planned for the month of May. This trip will take up the following topics: The relations between flowers and insects. The food and shelter relation between plants and animals. Recognition of 5 to 10 common trees. Need of conservation of forests. An extra trip could well be taken to give child a little knowledge and love for spring flowers and awakening nature.) Fourteenth week. STUDY OF THE BEE OR BUTTERFLY WITH REFERENCE TO ADAPTATIONS FOR INSECT POLLINATION. Study of an irregular flower to show adaptations for insect visitors. Fertilization begun. Growth of pollen tubes. Fifteenth week. FERTILIZATION COMPLETED. Use of chart to show part played by egg and sperm cell. Ultimate result the formation of embryo and its growth under favorable conditions into young plant. Relation of flower and fruit, pea, or bean used for this purpose. Development of fleshy fruit. Apple used for this purpose. Sixteenth week. MATURING OF PARTS AND STORING OF FOOD IN SEED AND FRUIT. The devices for scattering the seeds and relation to future plants. Resume of processes of nutrition to show how materials found in fruit and seed are obtained by the plant. Seventeenth week. PLANT BREEDING. Factors: (_a_) selective planting, (_b_) cross-pollination, (_c_) hybridizing. Heredity and variation begun. Darwin and Burbank mentioned.