6 CONTENTS. 



Page. 



Poli/poritti subacldm Peck 44 



Occurrence 44 



Structure of diseased wood 45 



Fruiting organ 48 



Remedies 49 



Other diseases 49 



Polyporus vaporarius (Pers. ) Fr 49 



Polyporus annosus Fr 49 



Agaricus melleus Yalil 50 



Conclusion 51 



Explanation of plates ■. 53 



