DEATHS IN THE GARDENS IN 1919. 87 



state of the bird bronchitis or pneumonia slips in and finishes 

 the illness. 



The cause of the inflammation is irritation, and this may be 

 either mechanical or toxic. 



The mechanical source would be foreign bodies in the intestine, 

 e. g. grit. This appears a less likely cause. 



The toxic cause may be either bacterial in oi"igin or brought 

 about by poisons from unsuitable or decomposed food. 



Which of these causes is the true one or which the prepond- 

 erating one is the subject of the investigation which has now 

 to be made. 



