VEGETABLE PHYSIOLOGY. 7 



in size, from that of a pea, to a circumference of 

 three feet. 



All cellular matter is, by a fundamental law of 

 nature, arranged into the specific forms of the organi- 

 sation and specific structure of every different kind of 

 plant ; distinguishing them from each other in form, 

 colour, and all other physical properties. 



