CONTENTS, 



Page. 



Introduction 9 



Nature of the disease 10 



General diagnosis 10 



Spread and loss 11 



General distribution of the disease 11 



Tropical America _ 11 



Cuba 11 



Jamaica 14 



Cayman Islands 15 



British Honduras 16 



Trinidad 16 



British Guiana 17 



Eastern Tropics 18 



Philippine Islands 19 



Ceylon 19 



India 19 



German East Africa 20 



Portuguese East Africa 20 



Tahiti ?0 



General investigation of the disease in the West Indies 22 



Investigations of the disease by the writer 27 



Structure of the coconut tree 36 



Field studies of the disease 38 



Infection studies 38 



Bacterial inoculations 39 



Fungous inoculations 47 



Spread of infection 48 



Remedial and preventive experiments 54 



Remedies 55 



Preventives 59 



Laboratory and greenhouse studies of the disease 63 



Cultural experiments 64 



Studies of the group characteristics of the organism 64 



Morphology of organism and colony 64 



Growth with and without air 65 



Liquefaction of gelatin 66 



Production of acid and gas in dextrose 68 



Production of acid and gas in lactose 70 



Production of acid and gas in saccharose 70 



Growth in nitrate bouillon 71 



Color production 71 



Growth on starch media 72 



Production of acid and gas in glycerin 75 



Group number of the coconut organism 76 



228 



5 



