THE PHYSIOLOGY OF PLANTS. 



OUTLINE OF THE COURSE. 



PHYSIOLOGY, in its broad sense, includes all operations 

 carried on by living- matter. There is but one living substance 

 known, PROTOPLASM. Obviously the study of the physio- 

 logical operations and processes of plants should be preceded 

 by a study of the structure and properties of the substance 

 which is the sole physical basis of life and its phenomena. 

 Hence a complete treatment of our present subject involves 

 two divisions, which, with their leading subdivisions, are as 

 follows : 



Division I. THE STRUCTURE AX D PROPERTIES OF PROTO- 

 PLASM. 



1. Its composition, --molar, mechanical, physical, and 



chemical. 



2. Its relations to external conditions. 



3. Its power of organism-building'. 



Division II. THE PHYSIOLOGICAL OPERATIONS OF 

 PLANTS. 



1. Nutrition. 



2 . Growth . 



3. Reproduction. 



4. Irritability. 



5. Locomotion. 



6. Protection. 



