76 THE GROUSE DISEASE chap, viu 



existing between our bacillus of malignant oedema 

 occurring in earth and the bacillus of grouse disease ; 

 and it is obvious that notwithstanding certain striking 

 cultural similarities between the two species, no valid 

 reason exists to accuse our bacillus of earth, i.e. that 

 of our malignant oedema, as causally connected with 

 the grouse disease. 



