TABLE OF CONTENTS. 



LETTER I. Page 



Introductory Remarks — Fundamental Terms — The Crowfoot Tribe — The 

 Poppy Tribe . . . . .1 



LETTER n. 

 The Umbelliferous Tribe— Blanching— The Geranium Tribe— Hybrid Plants 25 



LETTER II L 

 The Evening Primrose Tribe — The Myrtle Tribe . . .46 



LETTER IV. 

 The Cruciferous Tribe — Double Flowers — The Violet Tribe . . 66 



LETTER V. 



The Passion-flower Tribe— Affinity— The Gourd Tribe— The Tutsan Tribe 71 



LETTER VI. 

 The Mallow Tribe— The Orange Tribe . . . .86 



LETTER VII. 



Tlie Chickweed Tribe— Metamorphoses of Plants — The Purslane Tribe — 



Succulent Plants Breathing-pores . . . .96 



LETTER VIII. 

 The Rose Tribe— Budding and Grafting— The Pea Tiibe . .107 



LETTER IX. 



The Protea Tribe— The Amaranth Tribe . . . .130 



LETTER X. 

 The Marvel of Peru Tribe — The Oak Tribe — Structure of Dicotyledonous 



Wood . . . . . . .136 



LETTER XI. 

 Tlie Nettle Tribe— Woody Fibre— The Breadfruit Tribe— The Willow Tribe 148 



LETTER XII. 

 The Heath Tribe— The Bindweed Tribe . . . .158 



