2^8 Introduction. 



inner histological connection between leaves and axes, shoots 

 and parent-shoots, primary and secondary roots, and above all 

 in gaining a correct insight into subsequent growth in thickness 

 and so learning to understand the true mode of formation of a 

 woody body and of the secondary rind. 



It is then the task of the following chapter to give a more 

 detailed account of the history of phytotomy, the salient 

 points in which have now been indicated. 





