CONTEN T S. 



Paqb 



INTRODUCTION. — General View of tiie Science . . 13 

 PAET I. 



STRUCTURAL AND PHYSIOLOGICAL BOTANY. 



CHAPTER I. — OF THE ELEMENTARY STRUCTURE OF 



PLANTS 



17 



Sect. I. Of Organization in General . . . .17 



The Elementary Constitution of Plants . . . • 17 



Their Organic Constitution . . » • • • .18 



Distinctions between Minerals and Organized Beings 1 9 

 Individuals and Species ...»>•• 20 



Life 21 



Difference between Vegetables and Animals • . .21 



Sect. II. Of the Cells and Cellular Tissue of Plants 22 



Cellular Structure 23 



The Cell as a Living Organism 26 



Its Formation and Growth 27 



Original Cell- Formation 27 



Cell-Multiplication 28 



Free Cell-Multiplication within a Mother-Cell . .30 



Cell-Growth . 30 



Branching Cells 31 



Cyclosis or Circulation in Cells . • • • • • 3l 

 1* 



