CONTENTS. 



Pas- 



I, Hibiscus cannabinus, L. 



1. Tnhoduction ... 



2. Pollination and natural cross-fertilization 



3. The varieties of H. cannnhinus 



4. Description of tlie tj'pes ... 



5. A possible extension of the metliod of puie lime 



TT. Hiniscus sahdaiuffa, L. 



1. Introduction 



2. Pollination an<l natural crossfei tilization 

 ■'^. Description of the varieties 



9 

 13 

 16 

 20 

 27 



30 

 31 

 32 



