CONTENTS 



I. TWIGS AND BUDS 



OBSERVATION PAGE 



I. The bud and the branch . 1 



Q. The leaf-bud and the fruit-bud 5 



III. The struggle for existence in a tree top 



IV. A bit of history 14 



V. The opening of the buds 19 



II. LEAVES 



VI. What is a leaf ? 24 



VII. The parts of leaves 26 



VIII. The compound leaf 



IX. The forms of leaves 42 



III. FLOWEKS 



X. What is a flower I 49 



XI. What is a flower ? concluded 53 



XII. The parts of the pistil -57 



XIII. The stamens 63 



XIV. The dandelion 68 



XV. Cross -fertilization 74 



Ox) 



