CONTENTS 



Introduction, ...... 



Propagation by cuttings, .... 



Propagation by layers, ..... 



Propagation by the nurse-root method. 



Methods used, 



Relation of the variety to root formation, . 



Effect of soil and season, .... 



Piece and side-root grafts. 



Dwarf apple and pear nurse roots, 



Effect of budding on root formation, . 



Grafting on known roots, .... 

 Histology of the twig in relation to root formation, 

 Discussion of the results, .... 



Summary, . . . . ' , 



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