CONTENTS. 



CHAPTER PAGK 



I. WHAT BIOLOGY TEACHES 7 



II. LIVING MATTER 12 



III. DIFFERENCES BETWEEN LIVING AND NON-LIVING MATTER 17 



IV. DIFFERENT KINDS OF LIVING MATTER 23 



V. INDIVIDUAL VEGETABLE CELLS 27 



VI. THE VEGETABLE CELL AS A MEMBER OF A GROUP 33 



VII. PROTOPHYTES, OR THE SIMPLEST FORMS OF PLANTS 40 



VIII. THALLOGENS, OR DIVISION OF LABOR IN PLANTS 46 



IX. ACROGENS, OR PLANTS WHICH GROW AT THE SUMMIT. ... ; 50 



X. ENDOGENS, OR INSIDE-GROWERS 58 



XL EXOGENS, OR OUTSIDE-GROWERS 74: 



XII. THE VEGETABLE CLOTHING OF THE WORLD 80 



GLOSSARY AND INDEX 86 



[WVBRSITY] 



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