MUTATION IN PLANTS. 



D. T. MACDOUGAL. 



It is presumably safe to say that all students of natural his- 

 tory agree in the opinion that living matter has qualities at the 

 present time that it did not originally, or always possess, and 

 furthermore it is universally conceded that protoplasm is under- 

 going such development that it is constantly acquiring new prop- 

 erties, and taking form in an increasing number of types, kinds, 



matter is increasing the number of its qualities, multiplying the 

 number of forms in which these qualities are variously grouped, 

 and at the same time undergoing such differentiation that an 



