6 BOTA X Y 



to living beings in bouillon anil other organic culture^ media when 

 exposed to the action of radium ( 7 ). 



Botany, or the science of plants, may be divided into a general 

 and a special part. In the general part, the structure and functions 

 of plants as such will be considered ; in the special part, the 

 particular structure and functions of the separate orders of plants 

 will l)e discussed. 



The study of the structure of plants is called MORPHOLOGY ; 

 that of their functions PHYSIOLOGY. In the general part, morphology 

 and physiology will be treated separately; in the special part, 

 conjointly. 



