" GROUSE DISEASE "PATHOLOGY 



291 



found in the liver (one exception). In five instances they were cultivated from 

 one of the other organs also. 



Since the counting of the Strongyli was systematically undertaken twenty^ 

 three presumably healthy birds have been examined. The results confirmed the 

 opinions previously arrived at. In this series four birds had less than one 

 hundred Strongyli, and Bacillus coli was not found in their organs. Fifteen had 

 Strongyli varying in number between one hundred and one thousand, and 

 Bacillus coli was cultivated from the organs of some (eight) and not from those 

 of others (seven). In four birds in which very large numbers of Strongyli, 

 i.e., over one thousand, were counted, Bacillus coli was found in the livers of all. 

 The results of these observations are given in the following table. 



TABLE III. SHOWING THE RESULTS OF CULTURES AFTER THE ADOPTION 

 OF THE METHOD OF COUNTING STRONGYLI. 



B. ent.=B. enttritidis. 



The points which come out clearly from these two tables are: (1) that 

 when Strongyli are absent from the cseca or are present only in small p j n t s 

 numbers (less than a hundred), intestinal bacteria, especially Bacillus ^^^ 

 coli, are not present in the liver or other organs of the Grouse (eleven tables - 



